《2025年阳光同学暑假口算五升六数学》

1. 直接写出得数。
$4.72 - 0.7 = $ $15×8 = $ $0.6 + 1.24 = $ $8.8÷2.2 = $
$0.22 + 0.8 = $ $12×0.25 = $ $1÷0.05 = $ $9.23 - 6.5 = $
$0.38 + 2.72 = $ $9.3÷0.93 = $ $10 - 2.05 = $ $7.92 + 2.08 = $
$0.46 + 0.19 = $ $0.6÷0.06 = $ $2.4×0.3 = $ $9÷0.45 = $
$1.6×5 = $ $3.25 - 2.55 = $ $0.95÷1.9 = $ $3 - 2.6 = $
$3.2÷20 = $ $0.06 + 0.28 = $ $0.24×5 = $ $2.8÷1.4 = $

答案： 4.02 120 1.84 4
1.02 3 20 2.73
3.1 10 7.95 10
0.65 10 0.72 20
8 0.7 0.5 0.4
0.16 0.34 1.2 2

2. 计算下面各题,怎样简便就怎样算。
$1.25×88$ $853 + 86 - 153 + 814$ $9.5×0.86 - 7.6×0.95$

答案： 110 1600 0.95

3. 解方程,带☆的要检验。
$8x - 25 = 15$ $(x - 1.8)÷4 = 2.8$ ☆$21 - 2x = 15$
$3.2÷x = 8$ $8.7x - 3.4x = 21.2$ ☆$3x + 0.2x + 0.8 = 7.2$

答案： $ x = 5 $ $ x = 13 $ $ x = 3 $（检验略）
$ x = 0.4 $ $ x = 4 $ $ x = 2 $（检验略）