小学四年级简单计算题及答案

1、5.76+13.67+4.24+6.33

=(5.76+4.24)+(13.67+6.33)

=10+20

=30

例2，37.24+23.79-17.24

=37.24-17.24+23.79

=20+23.79

=43.79

例3，4×3.78×0.25

=4×0.25×3.78

=1×3.78

=3.78

例4: 125×246×0.8

=125×0.8×246

=100×246

=24600

例5，(2.5+12.5) × 40

=2.5×40+12.5×40

=100+500

=600

例6，3.68× 4.79+6.32× 4.79

=(3.68+6.32)×4.79

=10×4.79

=47.9

例7 . 26 . 86×25.66-16.86×25.66

=(26.86-16.86) ×25.66

=10×25.66

=256.6

例8，5.7× 99+5.7

= 5.7×(99+1)

=5.7×100

=570

例9，34×9.9

=34×(10-0.1)

=34×10-34×0.1

=340-3.4

=336.6

例如10，57×101。

=57×(100+1)

=57×100+57×1

=5757