小学六年级数学四则运算简便运算500题VIP

小学数学四则运算简单运算小结操作简单4 3.2+5 6.8 25(80.4)1.25 7-(2-)(+ )72 93.531125-997 998 1246 9989(8700+870+87)871258.8 1.3+4.25+3.7+3.75 17.15-(3.5-2.85)3.499+3.4 4.81.01 0.4(2.573)(1.6+1.6+1.6+1.6)25 (+-)12.3-2.45-5.7-4.55 2+0.1250.256464.287+0.6421300 7836+7.8741-7 17+8+0.125+0.5 2.42 4.58-43 251004.25-3-(2-1)3 . 83 . 9+3 . 90 . 1+0 . 13 . 9 12.1-()105-() - 41() -(- )1 - -4 5 -()4-(2.5 1.9)(0.5-0.5)4-2.5 1.9(0.5-0.5)4-2.5 1 . 90 . 5-0.54-(2.5 1 . 90 . 5)-0.54-(2.5-1.9)(0.5-0.5)4-(2.5-1.9)0.5-0.512-4-2-5-12.5% 0.125 8.25 12.5%()2.50.4215-2.25-7 (-)10(-0.5) (2.7-4.25)2.81.25 17.4 125% 10-4.687.2 0.051(5-5) 18.09(1.5 2)3.75-0 . 840 . 3(1 . 9618 . 9)-(0.15)1.81325 54018152.58 9.5 40.125 2.1 7(3-1.625) 12.5-2.1 9.63 (7 72 7)43.8 1 6.2 3(4-3.5) (2 -1)122.58 3.5 0.125(9.5 9 9 9.5) 12 3-(1 1)1(0.05 )0.25-125% 5.350.25 2.65(3 -2)(180%) (4.20.7 6)0 . 832 . 512 . 5 7 . 69 . 90 . 018 . 320 . 58-0 . 320 . 581.255 0.252010.69-2 . 52 . 4 0 . 32 . 50 . 048.457 8.442 8 . 4130 . 6527 . 210 . 1-7.21.22.5 2.82.5320.65+3.23.5 1525(4 )60(-)0.35 0.650.2537.5% 25% 25%0.35+0.65 45-52 - 1000-(+)15 +9 32+ +(+)(3 -)()283-11 (-)()()-()-() ()-()12.06+5.07+2.94 30.34+9.76-10.34 33 25743441.7 1.250.8 17 -7 1 -,41.06-19.72-20.28 7-3 8 2- 11 7 3700145 18.62.50.4 13295.68+(5.39+4.32)19.68-(2.97+9.68)7(-)5-(-)1.25(80.5)0.25(41.2)1.25(2130.8)0.74(71)24(- ) (12 ) 7 (7-) 9.3(4)0 . 921 . 41+0 . 928 . 59-1 . 311 . 6-1 . 61 . 3 11.6+18.49999 999 99 9 4821-998 3 . 212 . 525 1.25887 . 60 . 25 3 . 50 . 125 3 . 89 . 9+0.38 103-2-(138)125 3700-2185-815 20(175)4725314205 25(4032) (57)80 49258141256 16