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一、口算。
$5.63 - 5.21 = $
$0.5×0.2 = $
$0.8 - 0.55 = $
$0.34÷1.7 = $
$0.8×1.6 = $
$8.24÷0.4 = $
$0.45 + 1.37 = $
$0.4a + 0.6a = $
$2.32 - 0.3 = $
$1.7×0.7 = $
$7.8÷0.6 = $
$3.07×1000 = $
$2.5×3.2 = $
$0.7÷0.04 = $
$0.7÷0.35 = $
$9.9÷4.5 = $
$14.6 + 0.34 = $
$5.05÷0.5 = $
$2.2 - 0.33 = $
$1.6×0.04 = $
$0.03×400 = $
$0.35×3 = $
$0.36÷0.03 = $
$15x - 6x = $
$5.63 - 5.21 = $
0.42
$0.5×0.2 = $
0.1
$0.8 - 0.55 = $
0.25
$0.34÷1.7 = $
0.2
$0.8×1.6 = $
1.28
$8.24÷0.4 = $
20.6
$0.45 + 1.37 = $
1.82
$0.4a + 0.6a = $
a
$2.32 - 0.3 = $
2.02
$1.7×0.7 = $
1.19
$7.8÷0.6 = $
13
$3.07×1000 = $
3070
$2.5×3.2 = $
8
$0.7÷0.04 = $
17.5
$0.7÷0.35 = $
2
$9.9÷4.5 = $
2.2
$14.6 + 0.34 = $
14.94
$5.05÷0.5 = $
10.1
$2.2 - 0.33 = $
1.87
$1.6×0.04 = $
0.064
$0.03×400 = $
12
$0.35×3 = $
1.05
$0.36÷0.03 = $
12
$15x - 6x = $
9x
答案
0.42 0.1 0.25 0.2 1.28 20.6 1.82 a 2.02 1.19 13 3070 8 17.5 2 2.2 14.94 10.1 1.87 0.064 12 1.05 12 9x
二、用竖式计算。
$2.03 - 0.195$
$7.8×1.4$
$0.777÷0.37$
$28.76 + 5.024$
$5.94÷5.5$
$2.03×0.18$
$2.03 - 0.195$
$7.8×1.4$
$0.777÷0.37$
$28.76 + 5.024$
$5.94÷5.5$
$2.03×0.18$
答案
1.835 10.92 2.1 33.784 1.08 0.3654
