《2025年阳光同学计算小达人四年级数学下册冀教版》

1. 根据运算律填上合适的数。
$15 + 17 = \_\_\_ + 15$ $378 - 39 - 39 = 378 - (\_\_\_ + \_\_\_)$
$25 \times 7 \times 4 = \_\_\_ \times \_\_\_ \times 7$ $125 \times (8 \times 47) = (125 \times \_\_\_) \times 47$
$25 \times 24 = 25 \times \_\_\_ \times \_\_\_$ $37 + 48 + 23 + 52 = (\_\_\_ + \_\_\_) + (\_\_\_ + \_\_\_)$
$239 \times 16 + 239 \times 4 = 239 \times \_\_\_$ $367 \times 2 + 367 \times 7 + 367 = 367 \times \_\_\_$

答案： 17@@39@@39@@25@@4@@8@@4@@6@@37@@23@@48@@52@@20@@10

2. 直接写出得数。
$84 - 42 =$ $32 \times 400 =$ $19 + 91 =$
$630 \div 90 =$ $340 - 180 =$ $300 \div 20 =$
$23 \times 60 =$ $560 \div 80 =$ $28 \times 50 =$
$112 \div 16 =$ $65 \times 4 =$ $720 \div 40 =$
$880 \div 44 =$ $131 + 69 =$ $6 \times 15 - 21 =$
$13 \times 700 =$ $240 \div 12 =$ $28 + 36 \div 3 =$

答案： 42@@12800@@110@@7@@160@@15@@1380@@7@@1400@@7@@260@@18@@20@@200@@69@@9100@@20@@40

3. 用竖式计算。
$290 \times 36 =$ $832 \div 16 =$ $385 \times 24 =$
$714 \times 26 =$ $80 \times 350 =$ $409 \times 50 =$
$415 \times 18 =$ $903 \times 20 =$ $726 \times 13 =$

答案： 10440@@52@@9240@@18564@@28000@@20450@@7470@@18060@@9438