四年级下册简便运算100道

1、四年级下册简便运算100道158+262+138375+219+381+2255001 247 1021 -232(181+2564) +2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738- 1065899+3442357-183-317-3572365-1086 -214497 -2992370+19953999+4981883-39812X 2575X 24138X 25X483X 10

2、2-83X 2(13 X 125) X (3 X 8)98 X 199(12+24+80) X 50704 X 25123X 18- 123X 3+85X 12325 X 32 X 12550 X (34 X4) X 332 X (25+125)25X (24+16)88 X 125178X 99+178102X 7679X42+79+79X5758 X 987300 + 25 + 4178X 101-1788100 + 4+7584X 36+64X 8416800+12075 X 99+2X7530100+210032000+400(1) (78+61) + 3949700+700(2) 7

3、00-82-181248+24(3) 348+ 163+ 242+410+ 5373150+15(4) 125X47 47X254800+25(5) 201X31621500+125(6) 374-205+ 226- 95(7) 3000 - 9992356- ( 1356721)(8) 997X 7+ 211235- ( 1780 1665)75X 27+19X 2 5(9) 87X470 + 870X 5331 X 870+13X 310( 10) ( 55+ 55+ 55+ 55X 5) X 1254X (25 X 65+25 X 28)(11) 125 X ( 8+ 40) X 25(

4、12 ) 99 + 49X 991 . 10 0.432 2.568(13) 264X 97+4X2642. 9.3 5.26 2.74(14) 454+ 999X 999+5453. 13.4 ( 3.4 +5.2 )(15) 9999X 36+6666X 3X 324. 14.9 ( 5.2 +4.9 )(16) 124X 38+65X 124+76X 110-76X75. 18.32 5.47 4.32(17) 62X4+44X 5+5X 186. 17.29 5.28 6.29(18) 3400 62X34 38X2038X 141 . 25 X 6.8 X 0.04(19) 1992

5、X 19911991-1991 X 199019902. 0.25 X 32 X 0.125(20 (2 + 4+6 + + 100) - (1+3+5+ 99)3. 6.4 X 1.25 X 12.51. 2.73 + 0.89 + 1.271 . 0.45 X 2012. 4.37 + 0.28 + 1.63 + 5.722. 0.58 X 10.13. 50.2 X 99a + b + c = a + (bxc)4. 4.7 X 9.96. 6.3 + 1.85. 3.28 X 5.7+ 6.72 X 5.77. 4.2 + 3.56. 2.1 X 99 + 2.18. 9.5+ ( 1.9 X 8 )7. 1.7 X 9.9 + 0.179. 12.8 +(0.4 X 1.6 )8. 23 X 0.1+ 2.3 X 9.910. 930 + 0.6 +51 . 0.18 +4.26 -0.18 +4.2611 . 63.4 + 2.5 + 0.42. 0.58 X 1.3 + 0.58 X 1.312.(7.7 + 1.54 ) + 0.73. 7