五年级数学经典简算题

五年级数学简算题姓名_____

①拆： 0.125×32 ×25 0.125×0.64 4.6×57+2.3×86

②变：0.78×101 6.24×9.9 1.26×

10.1

③分配律：3.26×5.7－3.26×0.7 9.8+99×9.8

7.4×0.28+0.28×2.6 3.6×3.14+43.9×0.64

0.38×3.5＋0.62×3.5 5.4×5.4+3.6×

5.4+5.4

④结合律：0.125×0.25×8×4 （8×5.27）×1.25

⑤移小数点：4.8×0.9+0.48 4.6×1.9+0.54×19

0.45×72+45×0.18+4.5 4.2×4+58×0.4

4.65×32+2.5×46.5+0.465×430

⑥减、除法性质：53.6÷0.25÷4 5.32＋7.93＋4.68

12.5÷（20÷8）12.39－(5.18＋2.39) 32.1－8.3－1.7 6.81+6.81×99 0.25×185×40 4.4×0.8－3.4×0.8

(9.37+9．37+9．37+9．37)× 2．5 2.37×6.3+2.37×3.7