《2025年阳光同学计算小达人五年级数学下册冀教版》

1. 直接写出得数。（建议 3 分钟完成）
$4.4 - 0.22 =$ $10 \div 0.5 =$ $13.4 - (3.4 + 0.8) =$
$0.05 \times 700 =$ $6.4 \div 0.16 =$ $35 \div 0.5 \div 7 =$
$12 \div 30 =$ $0.08 \times 20 =$ $0.1 \div 0.01 \times 4.8 =$
$0.8 + 0.92 =$ $10.5 \div 1.5 =$ $9.3 \div (5 \times 0.6) =$
$9 \div 1.8 =$ $0.5 + 0.45 =$ $7.23 \times 4 \times 0.25 =$

答案： 4.18@@20@@9.2@@35@@40@@10@@0.4@@1.6@@48@@1.72@@7@@3.1@@5@@0.95@@7.23

2. 解方程。（建议 4 分钟完成）
$10.5 + 7x = 16.1$ $60x \div 3 = 30$ $4 \times 2.5 + 9x = 91$
$5x - 8.1 = 14.4$ $7.4x - 2.8x = 36.8$ $20(x - 15) = 240$

答案： $x = 0.8$@@$x = 1.5$@@$x = 9$@@$x = 4.5$@@$x = 8$@@$x = 27$

在$\square$里填上合适的数字。
$\begin{array}{r}2.\square\square\\\times\ \ \ \ \ \square.7\\\hline\square\square9\square\\\square\square5\\\hline1\square.\square\square5\end{array}$ $\begin{array}{r}1\square.2\\\times\ \ \ \ \ \square\square.\square\\\hline6\square\square\\\square6\square\\\hline2\square\square.60\end{array}$

答案：