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一、口算。
$6 - 0.6 = $
$1.72 + 0.4 = $
$3.8 + 0.6 = $
$0.76 + 0.54 = $
$0.7 - 0.62 = $
$7 - 0.62 = $
$0.99 + 0.1 = $
$24.5 - 1.4 = $
$1.06 - 0.6 = $
$0.9 + 7.1 = $
$6.5 - 5.6 = $
$3.6 - 1.6 = $
$4.75 - 2.54 = $
$1.7 + 3 = $
$2.3 + 1.12 = $
$4.8 + 5.2 = $
$1.9 + 0.51 = $
$5.5 - 0.19 = $
$7.8 - 0.28 = $
$0.9 + 2.01 = $
$2.19 + 9.1 = $
$6.02 - 5.1 = $
$2.13 + 3.26 = $
$0.83 - 0.62 = $
$6 - 0.6 = $
5.4
$1.72 + 0.4 = $
2.12
$3.8 + 0.6 = $
4.4
$0.76 + 0.54 = $
1.3
$0.7 - 0.62 = $
0.08
$7 - 0.62 = $
6.38
$0.99 + 0.1 = $
1.09
$24.5 - 1.4 = $
23.1
$1.06 - 0.6 = $
0.46
$0.9 + 7.1 = $
8
$6.5 - 5.6 = $
0.9
$3.6 - 1.6 = $
2
$4.75 - 2.54 = $
2.21
$1.7 + 3 = $
4.7
$2.3 + 1.12 = $
3.42
$4.8 + 5.2 = $
10
$1.9 + 0.51 = $
2.41
$5.5 - 0.19 = $
5.31
$7.8 - 0.28 = $
7.52
$0.9 + 2.01 = $
2.91
$2.19 + 9.1 = $
11.29
$6.02 - 5.1 = $
0.92
$2.13 + 3.26 = $
5.39
$0.83 - 0.62 = $
0.21
答案
5.4 2.12 4.4
1.3 0.08 6.38
1.09 23.1 0.46
8 0.9 2
2.21 4.7 3.42
10 2.41 5.31
7.52 2.91 11.29
0.92 5.39 0.21
1.3 0.08 6.38
1.09 23.1 0.46
8 0.9 2
2.21 4.7 3.42
10 2.41 5.31
7.52 2.91 11.29
0.92 5.39 0.21
二、用竖式计算。
$6.54 + 4.96$
$9.04 - 0.36$
$15.59 + 4.7$
$3.91 + 4.76$
$70 - 2.37$
$8.2 - 3.47$
$6.54 + 4.96$
$9.04 - 0.36$
$15.59 + 4.7$
$3.91 + 4.76$
$70 - 2.37$
$8.2 - 3.47$
答案
11.5 8.68 20.29
8.67 67.63 4.73
8.67 67.63 4.73
