沪教版二年级数学下册计算题大全9

1、925X2 =78+30+6 =2X6+7=16+48 + 6 =40+5+22 = 36+9 2 =9227+9 =4X2X6=36+4+3 = 300+500 =500-200 =330+240 =490-20=180+ 112+ 188 = 521 + 274+ 179 = 372+233- 172 =986-598+ 12 = 912+498-412 =219+ 106 106 = 832 177-223 =9X2+9X2=14X 7 =5X83X8=19X 3 =969X9 =3X3+7=14+7+14 =42+7 4 =3828+7 =3X4X6=45 - 5 + 3 =900+2

2、00 =700-400 =110+ 760 =780-370 =113+ 106+394 =649+ 107+51 =696+309- 196 = 739 182+43 =305+217-305 = 252+732-432 = 750-71-229 =7X4+5X4=23X4 =7X 7-4X 7 =14X 5 =783X2 =9X6+2=44+20+4 =24+6+26 =12+41 =44- 14 + 2 =5X5X4=80+4 + 4 =800+500 =200 100 =480+440 =630 10=356+ 143+ 157 =450+271+ 150 =959+327-959 =

3、711-445+34 =489+494-289 =100+883-783 =926-200- 100 =3X6+7X6=13X 8 =8X65X6=11 x 2 =955X7 =3X2+8=53+32 + 4 =36+6+69 =20+ 4 4 =2X4X2=30+5 + 2 =300+ 700 =400-200 =210+520 =490-410 =457+82+418 =649+247+51 =645+260-445 =737-366+29 =706+419-306 =437+332-332 =842 125-275 =4X 9+6X 9 =17X9 =5X24X2=27X 5 =825X

4、5 =6X6+8=15+24+4 =45+9+34 =56+77 =6081 + 9 =3X5X2=36- 12 + 6 =24+3 + 2 =300+400 = 700-600 =160+330 = 670-310 = 380+99+201 =293+ 184+ 107 = 756+258-456 = 783-298+ 15 =858+221-858 = 402+533- 133 = 770-77-423 = 4X 7+9X 7 = 23X 2 =8X36X3=22X 7 = 937x6 =5X2+4=70+4+2 = 30+5+29 =49+75 =44- 12 + 6 = 3x4x5=

5、36+3+3 =700+400 = 200 100 =300+270 =780-220 =315+ 185+115 =464+282+36 =331 + 390- 131 = 630-278+48 =531 + 341- 131 = 332+828-228 = 612-67- 533 =8X 9 + 4X 9 =10X2 =9X85X8=26X 9 =13 4X2 =6X2+9=74+30+5 =35+7+30 =16+2 4 =209+3 =2X5X5=75- 5+ 3 =500+300 =300-200 =270+410 =330 130 =295+ 186+ 114 = 317+258+

6、 183 = 149+499- 149 =639-270+31 =663+218-563 = 137+517-317 = 965 198-402 =5X4+8X4=10X 9 =3X42X4=10X 8 =753X5 =8X4+8=61 + 21+7 = 64+8+80 =30+6 2 =6727+3 =4X2X5=8+2+2=500+200 =500-300 =740+230 =980-640 = 335+81 + 319 =311 + 243+ 189 =162+ 122 162 = 935-390+55 =668+313-368 = 472+309- 109= 972-42-258 =6

7、X 5+8X 5 =29 x 7 =5X 8 2X 8 =17X 7 =749X8 =5X3+9=10+35+7 =14+7 + 44 =36+9 2 =52- 10+2 =2X4X3=60+ 5 + 4 = 200+600 =400-200 =810+ 110 =340- 110 = 498+88+212 =595+ 141 + 105 = 432+ 109-232 = 951-397+46 =603+214- 103 = 470+ 127 127 = 832-61-539 =9X3+9X3= 19X 3 =6X 8-2X 8 =28X 7 =485X7 =4X5+9= 86+ 10 + 2

8、 =15+5+70 = 12+6 2 =3736 + 6 =5X5X2=32+2 + 4 = 700+300 =400-300 =540+240 =380-230 = 142+ 193+307 =266+291+ 134 = 599+ 165-499 = 685-600+ 15 =287+395- 187 = 433+ 174 174 =674-68-532 =5X 7+9X 7 =14X 9 =4X 93X 9 =21 X 9 =77 8X4 =6X8+5=44+72+8 =35-7+11 =14+71 =2648+8 =5x3x4=32+2 + 4 =300+500 =1000-300 =

9、590+ 130 =430-80=359+ 158+242 = 410+ 180+290 =445+ 112-445 = 956-487+31 =117+205- 117 = 455+411-311 = 926 125-375= 4X3+6X3=26 X 3 =7X26X2=10X 9 =41 4X2 =4X 7+7=57+28 + 4 =10+2+21 =16+81 =8630 + 5 =3X3X4=24+2 + 3 =500+900 =200 100 =540+ 120 =670-550 =487+62+438 =370+293+ 130 = 361 + 452-261 = 712-333

10、+21 =867+327-267 =497+310-310 =657-68-232 =2X6+7X6=20 x 9 =3X62X6=29X5 = 967X5 =9X3+7=50+30+6 =18+6+25 =164 4 =2035+ 7 =2X5X3=24+3 + 2 =600+200 =1000-800 =130+490 =800-420 =456+ 139+261 = 226+ 143+274=564+477- 164 =879- 199+20 =297+429-197= 427+847-447 =843 186-214 =2X 8+9X 8 =13X3 =4X 5 3X 5 =12X 5

11、 =934X4 =5X3+9= 47+42 + 7 =81 + 9+85 = 64+8 8 =1963 + 9 =4X2X5=20+2 + 2 = 800+300 =800 100 = 840+ 150 =440 190 = 257+76+224 =249+ 156+ 151 = 310+415-310 =910-385+75 =242+299-242 = 289+453- 153 = 841- 136-464 = 9X4+2X4=14X4 =3X 3-2X 3 =20 x 5 = 709X6 =3X4+3= 86+27 + 3 =21 + 3 + 42 =20+5 2 =98 4 + 2 =

12、4X3X2=32 + 4 + 4 =300+800 =300-200 =810+ 100 =300-30=366+ 157+243 =182+ 145+218 =195+233- 195 =982-298+ 16 =189+418- 189 = 361 + 918-318 = 888 150-250 =6X6+7X6=22X2 =8X 7-4X 7 =24X 3 =91 2X2 =4X6+9=27+81 + 9 =24+6+35 =16+43 =3436 + 9 =12+2 + 2 =4X4X4=64 + 4 + 4 =500+500 =400 100 =420+560 =640 440 =4

13、92+ 11 + 289 =386+ 152+214 =694+470-294 =644 166 + 22 =326+211-326 = 110+725- 125 = 931-84-516 =2X 7+3X 7 =22X 6 =5X44X4=19X 9 =365X3 =3X2+8=17+6 + 2 =18+9+36 =21 + 3 4 =95- 16 + 4 =5X5X5=900+300 =1000-200 =610+380 =390 120 =216+30+270=686+259+ 14 =187+264- 187=966-600+34 =954+ 190-354 =228+ 197-197

14、=679- 105-295 =7X 8+5X 8 =12X 5 =7X 8 3X 8 =13X6 =736X5 =4X5+5=21 + 21 + 7 =16+4+23 =8+22=4035+7 =3X3X6=36+3 + 4 =800+900 =1000-600 =260+480 =1000-790 =256+47+453 =512+ 182+88 =307+240- 107 =654-474+20 =867+301-367 =209+348-348 =930 136-464 =3X 5+8X 5 =19X4 =4X 8-3X 8 =16X 2 =832X7 =6X2+5=26+42 + 7

15、=40+8+63 =6+21=34- 12 + 3 =5X4X2=60 + 5 + 4 =100+900 =600-200 =110+860 =490 10=143+ 148+ 152 =354+276+46 =343+401-343 =926- 155+29 =503+424-303 =447+359-359 =842 180-320 =6X9+5X9=10X5 =3X22X2=21 x 5 =80 4X9 =6X6+5=37+63+7 =54-6 + 44 =28+7 4 =60- 12+3 =5x3x6=30+5 + 2 =700+300 =900-400 =430+ 100 =940-

16、300 =162+46+254 =500+220+ 100 = 774+464-774 = 670-390+20 = 842+221-342 = 107+973-773 = 831- 136-364 =3X 7+2X 7 = 16X 3 =3X22X2=29 X 9 = 603X2 =4X 8+2=41 + 48 + 8 = 63+9 + 45 =20+5 4 = 7742 + 6 =4X3X5=16+2 + 2 = 800+400 =400-200 =440+390 = 840-390 =241 + 81 + 219 = 285+278+215 =665+448-665 =871-488+

17、17 = 638+401-338 =181 + 276-276= 912 158-342 = 6X6+8X6=17X9 =8X 5 2X 5 =26 x 7 = 783X3 =4X2+4=15+36+9 =25+5+51 = 153 4 =5754+9 =2X4X5=30+2 + 3 = 900+300 =1000-600 =410+340 = 880-570= 178+37+263 =581 + 271 + 19 = 852+ 107-452 =651- 175+24 = 387+341-187 =209+734-434 =3X4+2X4=690-65-235 =6X 9+2X 9 =11

18、x 6 =5X 7-4X 7 =24X4 =955X9 =6X5+2=51 + 45 + 5 =6+3+ 16=14+2 3 =71 49+7 =4x4x5=16+2 + 2 =200+500 =400-300 =550+230 =660-20=191 + 117+383 =279+267+ 121 =654+394-454 =629-251 + 22 =488+ 131-388 =230+706- 106 =657- 101-399 =14X2 =9X 7-6X 7 =26X2 =899X7 =5X 7+9 =85+24+3 =21 + 3+24 = 15+35 = 1348+6 =4X2X

19、4=24+3 + 2 =300+400 =700- 100 = 120+540 =630-250 =226+ 148+ 152 = 413+247+287= 327+ 134-327=835-292+57=621 + 440-421 = 172+881-881 = 784-45-455 =6X6+3X6=28X5 =4X 5-2X 5 =26X 6 =654X9 =9X2+8=90+36 + 4 =4+2+66=27+31 =61 27 + 3 =5X2X2=60+5+3 =300+900 =300 100 =800+ 100 =780 140 = 202+42+358 =366+266+ 1

20、34 = 752+ 142-752 = 890-400+ 10 =953+326-853 =260+610-410 = 907 105-395 =6X8+8X8=20 X 8 =4X 5-2X 5 =17X 9 =829X2 =6X4+9=31 + 63+9 =27+3+28 =42+63 =72 45+5 =5X4X4=36+3+3 =600+500 =200- 100 =720+ 190 =510-260 =483+ 153+ 147 =220+206+ 180 =659+ 125-359 =943-285+42 =238+469-238 =136+322-322 =628 137-463

21、 =6X6+4X6=27X4 =9X 9 6X 9 =21 X 5 =41 3X2 =2X4+6=59+ 10 + 5 =64+8+61 =32+81 =7840 + 5 =4X2X4=30+2 + 3 =100+500 =1000-600 =390+470=650-220 =134+39+361 =529+213+71 =765+349-665 =974-499+25 =884+327-384 = 414+774-574 =704 122-378 = 5X 9+7X 9 =24 X 9 =5X22X2=23 X 5 =932X4 =9X8+5=76+8 + 2 =32+4+26 =8+41=

22、398 + 2 =5x3x6=80+ 5 + 4 =300+300 =700- 100 =140+810 =190 10=386+99+301 =351 + 264+49 =119+373- 119 =777-390+ 13 =865+283-365 =113+272- 172 =950-52-448 =6X 7 + 4X 7 =11X2 =6X64X6=14X 3 =1007X2 =2X7+8=11 + 42+6 =24+6+66 =12+33 =1721 + 7 =4X4X6=30+2 + 3 = 600+900 =1000- 100 =740+ 190 =730-630 = 119+ 1

23、77+ 123 =272+264+228 = 408+274-408 =855-391 + 36 =267 + 499-267 = 151 + 677-477 =857- 128-272 = 7X 5+6X 5 =25 X 8 =4X 8-3X 8 =11 x 5 =94-8X3 =3X 3+4=46+ 45 + 5 = 18-9+38 =18+9 2 =5630 + 5 =3X4X5=64 + 4 + 4 =800+ 100 = 1000-400 =110+510 =280-60=186+ 110+290 = 298+235+202 = 796+314-696 = 636-462+26 =2

24、79+499- 179= 296+ 132- 132 =936- 119-281 = 8X4+3X4=22X 3 =8X 6-7X 6 =26X 5 =40-6X4 =9X4+6=63+48+8 =14-2+55 =45+59 =7824+8 =5x3x4=48 + 4+3 = 500+900 = 1000-600 =200+560 =130 100 =189+ 146+354 =550+ 177+ 150 =874+ 188-674 = 773-584+11 =803+439-403 = 485+ 148 148 = 882-49-451 =6X6+9X6=27 X 8 =6X63X6=20

25、 x 9 =91 9X8 =4X8+9=20+81+9 =42+7+26 =48+65 =3935 + 5 =3X4X6=80+4 + 4 =700+ 100 =400-300 =730+230 =650-90=147+ 112+388 = 322+251 + 278=726+ 155 126 =619-335+ 16 =660+ 168-360 = 329+966-466 = 902 170 130 =5X 5+5X 5 =20X4 =5X44X4=28X 3 =122X6 =2X3+4=83+54+9 =36+4+81 =21 + 7 2 =19- 15+5 =2X2X6=40 + 2 +

26、 4 =700+800 =500-300 =900+ 100 =260-210 =229+45+455 =537+ 154+ 163 =746+ 113-346 = 973 199+26 =130+461- 130 = 257+553-553 = 814 183-117 =9X9+9X9=24X 2 =4X62X6=24 X 3 = 296X3 =3X9+9= 53+24 + 8 =42+7 + 44 = 8+21=75- 12 + 6 =4X4X2=48+3 + 4 = 200+600 =800-200 =380+500 =390-210 = 165+45+255 =358+263+42 =

27、 409+265- 109 = 781-393+ 12 =975+433-475=131 + 509-209 = 974-98-302 =5X9+2X9=11 x 5 =9X 5 8X 5 =22X6 =583X7 =5X3+2=14+24+4 =18+9+67 =35+7 2 =32 40+5 =5X4X6=12+2 + 3 =800+300 =1000-400 =710 + 240 =500-30=327+ 163+237=374+236 + 226=746+252-246 =778-499+21 =340+315- 140 =105+431- 131 =817 130 170 =7X 8

28、+5X 8 =10X4 =7X 5-3X 5 =13X 3 =61 6X8 =7X2+7=75+32 + 4 =20+5+72 =72+97 =668 + 2 =2X3X2=32+2 + 4 =100+700 =200 100 =560+ 120 =830-600 =196+ 116+384 =468+ 170+32 =409+472-309 =770-381+ 11 =949+473-249 =242+355-355 =778 173-327 =3X2+6X2=24X 8 =6X 7-4X 7 =11 X 9 =61 8X4 =2X8+8=89+ 16+4 =12+3+84 =25+55 =

29、42- 10+5 =2X3X6=75- 5+ 3 =900+ 100 =200- 100 =750+210 =160 120 =111 + 55+245 =268+ 159+ 132 =410+ 184-410 = 860-471+ 11 =237+ 111-237= 238+627-427=996-20-280 =9X 7+8X 7 =10X5 =7X42X4=15X 8 = 372X8 = 3X9+9= 17+27+ 9 = 20+5+70 = 40+58 = 2872 + 9 =2X2X5= 60+5+3 =400+600 = 400-200 =440+400 = 420-20 = 48

30、0+89+211 =422+ 190+278 = 613+326-613 = 811-181 + 70 =922+ 148-922 = 265+334-234 = 992-60-440 = 8X3+8X3=12X 8 =6X22X2= 14X 9 =798X9 =7X9+6=64+20+4 =14+2+66 =42+73 =5232+4 =3x5x6=24+ 3 + 4 =600+300 =800-700 =250+710 =130-80=309+33+367 =601+ 171 + 99 = 336+333- 136 =730342+ 12 =142+ 196 142 = 374+255-

31、155= 900-35-565 =2X 9+8X 9 =17X9 =6X93X9=16X6 =38 4X6 =9X2+4=79+4 + 2 =32+4+21 =24 + 4 6 = 4754 + 6 =3X4X5=40 + 4 + 2 = 900+200 =500 100 = 380+350 =770-470= 363+ 176+324 =242+ 120+ 158 = 546+304-246 = 676-288+ 12 =222+467- 122 = 427+211- 111 = 875-151-249 = 8X8+8X8= 15X 5 =5X64X6=21 X 8 = 926X4 =8X6

32、+4= 85+72 + 8 =30+6+86 = 18+3 6 =61 63+7 = 3X2X3= 36+3 + 4 = 100+ 700 =800-700 =370+ 570= 720-460 =207+62+438 = 361+ 180+39 =659+304-659 = 831- 167+36 =562 + 322 562 = 366+584-584 = 602-24-476=7X 9+7X 9 = 16X 7 =5X63X6=28X5 =955X7 =9X9+6=51 + 20+5 = 36+4+60 =28+73 =92- 18+2 = 2X4X6=12+2 + 3 = 900+50

33、0 =1000- 100 =140+ 180 = 510-360 =226+21 + 379 = 524+262+76 =342+333-342 = 810-472+62 =732+248-432 = 474+439-439 = 809- 106-494 = 5X 3+8X 3 = 13X 7 =3X 5-2X 5 =27 x 5 =18-3X5 =7X2+7= 13+ 14-7 =14-2+37 =12+43 =40 4 + 2 =3X2X3=30- 5+3 = 500+500 =400-200 =150+750 =520- 110 =160+ 165+335 =641 + 291 + 59

34、 =237+434-237= 672-488+ 16 =278+486-278 = 203+320-220 =819-76-224 =2X 8+5X 8 =10X2 =9X 5-4X 5 =13X4 =40-6X5 =4X 7+6 =45+ 16+8 =40-8 + 44 =16+43 =8325+5 =5X2X3=32 + 4 + 2 =800+ 100 =500-400 =710+ 140 =120-90=249+21 + 479 =656+269+44 =813+ 131-413 =966-596+30 =737+344-237 =497+246- 146 =866 165-435 =4

35、X 9+5X 9 =25X4 =3X 7-2X 7 =20 x 8 =803X8 =3X 7+5=35+ 12 + 3 =18+3+72 =24+8 3 =6530 + 5 =3X2X5=60 + 5 + 4 =600+ 100 =900-800 =770+220 =430-340 =257+31 + 369 =577+ 135+23 = 265+223- 165 =663-600+37 =116+389- 116 = 213+827-727= 770 185- 115 = 2X6+4X6=21 X 7 =7X23X2=19X5 =659X7 =6X2+4=52+28+7 =36+6+36 =

36、32 + 41 =889 + 3 =5X3X2=18+2 + 3 =500+ 700 =600 100 =750+ 100 =800-590 =181 + 94+306 =356+ 138+44 =614+422-614 =855-281 + 26 =821 + 367-621 = 445+410-410 =743- 159-341 =3X2+9X2=28X 9 =6X 3-4X 3 =25X6 =372X3 =9X5+8=40+48 + 6 =48+6+62 =32+43 =3028 + 7 =3X5X2=20+2 + 2 =100+300 =800 100 =480+ 140 =430 1

37、00 = 249+29+371 = 399+261+ 101 =313+110-213 =748-276+28 =649+415-549 =125+351- 151 =865-42-558 =2X 3+6X 3 =12X 5 =9X 8 2X 8 =11 x 5 =745X5 =3X8+8=35+4 + 2 =40+5+69 =164 4 =72- 12+6 =2X5X5=12+3 + 2 =600+ 100 =300 100 =760+ 180 =190 100 =261 + 104+296 =321+ 186+279 =348+479-348 =945 189+44 =611+ 186-4

38、11 =177+912-312 =667- 104-396 =6X 7+5X 7 =5X 7-4X 7 =24 X 6 =5X23X2=26X4 =856X7 =8X9+2=11 + 27 + 3 =42+7+67 =45 + 9 1 =50- 15 + 5 =5X5X5=36+3+3 =300+500 =900-800 =530+360 =960-820 =124+ 117+383 =440+243 + 260 =617+432-617 =688-398+ 10 =425+ 112-225 =110+564-264 =904-200-300 =7X 2+4X 2 =16X 5 =22X6 =

39、904X8 =9X5+4=47+ 15+3 = 20+5+70 =8+23=46- 12+2 =5X5X2=24+2 + 3 = 700+300 =400-300 =780+ 170 =520-350 = 156+75+225 =320+ 185+280 = 904+477-904 =748-281 + 33 = 267+310-267 =381 + 866-366 = 626 172-228 =2X 7+2X 7 =23X6 =5X 9-4X 9 =13X6 =949X9 =4X9+3= 22+ 16 + 2 = 15+3+59 = 18+2 4 = 30- 15 + 5 =4X5X6=27

40、+3 + 3 = 100+300 =300 100 = 310+660 =890-20= 258+97+303 = 639+203+61 =602+382-602 = 779-495+16 =349+ 198-249 = 187+903-203 = 725 144 156 = 8X8+3X8=11X4 =4X 8-2X 8 = 13X 3 =697X3 =2X4+5=38+ 16+8 =10+2+81 =24+61 =7132+4 =3X5X3=16+2 + 4 =800+ 700 =700-400 =550+ 130 =240-90=301+ 119+281 =309+270+91 =972

41、+313-572 =679-297+ 18 =674+269-574=142+ 165 165 =863-56-344 =8X 3+2X 3 =10X3 =5X 9-4X 9 =11 X 7 =906X3 =5X2+9=42+ 16+4 =18+2+27 =54+65 = 1340 + 5 =5X4X3=27+3 + 3 =300+300 =400-200 =600+ 150 =190 130 =421 + 147+353 = 393+ 173+ 107 = 438+ 118- 138 =844 156+ 12 =271 + 292- 171 = 278+305-305 =949 127-47

42、3 = 8X 7+3X 7 =20X 6 =5X 5-3X 5 =24 X 3 =936X6 =9X4+3=26+20 + 4 =15+3+56 =18+9 2 =53- 15 + 3 =2X3X5=12+3 + 2 =800+600 =200- 100 =280+ 130 =290 190 =205+ 139+261 =627+233+73 =823+321-223 =816 181 + 65 =123+404- 123 =299+406- 106 =823-65-335 =8X9+7X9=19X9 =4X 7-2X 7 =26 X 7 =225X3 =2X6+3=35+21 + 3 =81

43、 + 9+23 =45 + 9 1 =4748+6 =3X3X6=24 + 2 + 4 =200+900 =400-300 =510+ 150 =330-260 =497+ 183+317 =437+ 137+63 =372+302-372 =650-578+28 =374+299-274 =303+628-328 =767-67-233 =2X 9+6X 9 =23 X 5 =9X36X3=26X 2 =72-9X 3 =6X3+7=48+40 + 5 =8+4+80=12+61 =6336 + 9 =4X4X2=30+5 + 2 =300+ 100 =800 100 =180+720 =3

44、70-210 =145+ 15+385 =478+ 160+ 122 =792+ 195-392 =777-489+ 12 =396+ 166-396 =449+815-215 =942-81-519 =6X 7+8X 7 =17X2 =5X 7-3X 7 =19X5 =62 4X3 =9X5+9=66+ 15+5 =18+9+85 =15+35 =1735+5 =4X5X6=12+2 + 3 =800+900 =400 100 =190+330 =200 10 =378+ 11 + 489 =211 + 216+ 189 = 599+ 121-299 =780-590+ 10 =971 +

45、424-471 =381 + 891-791 =902-40-260 =8X 7+2X 7 =25 X 7 =6X23X2=23 x 3 =607X4 =5X 5+5=82+6+3 =36+6+55 =18+9 2 =7248 + 8 =5x5x4=40 + 5 + 4 =500+200 =300-200 =720+ 150 =620-260 =178+190+ 110 =460+270+40 =814+466-514 = 751-275+24 = 546+476- 146= 211+ 176 176= 633-67- 533 = 7X9+9X9=21 X 8 =9X35X3=10X6 =60

46、7X4 =6X2+2= 45+24+8 = 12+3+89 = 36+91 =41 6 + 2 = 5X2X4= 20+5 + 2 = 200+700 = 900-300 = 770+230 = 890-210 =421 + 81 + 319 = 436+ 141 + 264 = 874+389-474= 652-377+25 =685+362-585 =107+460-260 =666 169-331 =5X 5+9X 5 =16X 5 =9X 9-8X 9 =19X 7 =439X3 =8X4+2=29+ 16 + 8 =12+6+52 =6+23=7748 + 6 =3X3X5=60 -

47、 3 + 4 =100+ 100 =1000-600 =720+ 150 =690-500 =490+ 157+343 =424+ 150+ 176 =633+218-233 =889-599+ 10 =107+202- 107 =271 + 964- 164 =682-54-246 =8X 8 + 2X 8 =15X6 =7X44X4=10X 7 =767X6 =3X 7+5 =50+32+8 =28 + 4+61 = 12+33 =6824+8 =3X2X2=30+3 + 2 =500+400 =900-400 =440+ 100 =430-70=417+76+224 = 555+ 123

48、+ 145 =716 + 215-616 = 962 394 +32 =936+ 103-436 = 422+ 156 156 = 924 145-255 =4X 7+9X 7 =24 X 9 =17X 7 =8X 8 4X 8 =29 X 7 =928X4 =2X2+3=40+ 4 + 2 =63+9+25 =12+41 =5024 + 3 =4X2X3=24 + 2 + 4 =100+300 =700-600 =310+510 =690 130 =113+ 196+ 104 =448+ 151+ 152 = 125+375- 125 =671-582+ 11 =580+ 122-280 =

49、 100+708-408 =870-42-558 =8X6+4X6=11 X 6 =6X 8-4X 8 =494x9 =7X 7+7 =39+36+4 =28+7+29 =24+61 =6928+7 =3X2X6=8+2+2=400+200 =700-600 =630+320 =700-310 =284+44+256 =313+ 127+87 =206+442-206 =834-400+66 =399+487-199 = 441 + 491-291 = 873-43-357 =4X6+7X6=24X 8 =4X62X6=12X 9 =82X2=5X6+2=82+36 + 9 =35+7+63

50、=63+9 6 =7324 + 4 =5X5X6=45+3+3 =400+700 =900-400 =570+ 110 =950-520 =386+ 136+364 =397+115+203 =953+ 110-853 =987-500+ 13 =792+ 152-792 =258+ 121- 121 =994-76-424 =9X 7+2X 7 =26X 6 =5X83X8=27 X 9 =724X2 =9X3+5=44+24 + 6 =63+7+83 =30+5 2 =6936+9 =2X2X4=40 + 5 + 4 =800+ 700 =1000-600 =760+ 180 =110-30=334+ 198+202 =432+ 170+ 168 =631+ 149-631 =925-362+37 =868+237- 168 =413+ 719-719 =941-82-218 =6X4+3X4=15X2 =8X 5-4X 5 =17X3 =474X6 =5X2+7=62+21 + 7 =21 + 7+