《2025年小学数学计算10分钟四年级下册人教版》

1. 口算。（48 分）
6.1 + 1.2 = 5.3 - 3.1 = 5.6 - 3.6 = 2.22 + 3.12 =
4.4 - 2.3 = 6.9 - 3.8 = 1.3 + 5.7 = 8.12 + 1.85 =
5.9 - 3.3 = 3.2 + 4.5 = 6.7 + 6.3 = 5.33 + 3.23 =
3.6 - 2.1 = 3.2 + 5.4 = 6.8 - 0.5 = 4.54 + 1.34 =
2.3 - 1.2 = 1.5 + 5.3 = 2.7 - 0.4 = 1.25 + 7.21 =
4.5 - 1.1 = 7.9 - 5.7 = 3.2 + 6.7 = 6.41 + 7.17 =
8.9 - 6.2 = 2.7 - 1.4 = 9.8 - 8.2 = 4.62 - 2.22 =
6.8 - 6.7 = 6.3 + 1.1 = 2.6 + 7.1 = 6.65 - 0.34 =
7.5 - 6.2 = 8.5 - 6.3 = 1.6 + 4.3 = 8.58 - 3.23 =
5.1 + 1.8 = 2.5 - 2.1 = 5.3 + 2.2 = 2.33 + 2.44 =
5.9 - 5.4 = 9.5 - 2.4 = 8.4 + 1.4 = 6.15 + 3.23 =
7.3 + 2.3 = 6.8 - 4.4 = 1.1 + 7.3 = 10.77 - 3.44 =

答案： 7.3@@2.2@@2@@5.34@@2.1@@3.1@@7@@9.97@@2.6@@7.7@@13@@8.56@@1.5@@8.6@@6.3@@5.88@@1.1@@6.8@@2.3@@8.46@@3.4@@2.2@@9.9@@13.58@@2.7@@1.3@@1.6@@2.4@@0.1@@7.4@@9.7@@6.31@@1.3@@2.2@@5.9@@5.35@@6.9@@0.4@@7.5@@4.77@@0.5@@7.1@@9.8@@9.38@@9.6@@2.4@@8.4@@7.33

2. 用竖式计算，并验算。（18 分）
3.54 + 2.69 112.5 + 50.62 31.35 - 30.83
22.5 + 5.87 78.88 - 72.8 52.6 - 2.78

答案： 6.23@@163.12@@0.52@@28.37@@6.08@@49.82