《2025年阳光同学暑假口算五升六数学》

1. 直接写出得数。
$8 - 1.2 = $ $0.2 ÷ 0.01 = $ $0.25 × 40 = $ $3.6 + 0.34 = $
$7.38 - 5.88 = $ $6 - 2.8 = $ $0.83 + 0.38 = $ $0.4 × 0.52 = $
$0.5 × 0.6 = $ $0.9 × 0.08 = $ $6 ÷ 1.5 = $ $1.75 + 0.5 = $
$512 ÷ 2 = $ $11 - 6.22 = $ $2.5 × 0.04 = $ $2.4 ÷ 5 = $
$75 ÷ 3 = $ $4.15 - 2.8 = $ $7.2 ÷ 0.6 = $ $3.6 × 0.4 = $
$10 ÷ 0.05 = $ $4.2 ÷ 1.4 = $ $3.9 × 200 = $ $6.28 - 0.04 = $

答案： 1. 6.8 20 10 3.94
1.5 3.2 1.21 0.208
0.3 0.072 4 2.25
256 4.78 0.1 0.48
25 1.35 12 1.44
200 3 780 6.24

2. 解方程。
$2.7x = 12.96$ $5.6 + x = 6.48$ $x - 3.28 = 16.09$
$x ÷ 0.2 = 27.5$ $3 × 2.8 + 3x = 12.6$ $(x - 2.8) ÷ 0.3 = 7.9$
$x - 0.1x = 10.8$ $(x - 8.4) × 1.5 = 5.4$ $x - 17.2 + 6.43 = 8.52$

答案： 2. $ x = 4.8 $ $ x = 0.88 $ $ x = 19.37 $
$ x = 5.5 $ $ x = 1.4 $ $ x = 5.17 $
$ x = 12 $ $ x = 12 $ $ x = 19.29 $