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口算:5.6+3.4=10-2.7=2.8+3.3=1.2×0.8=10÷2.5=8×1.25=3.2÷0.2=12-0.5-2.5=1.7×0.3=2.8×0.4=7.7-1.9=3.5+6.5=0.24÷0.6=4.23+1.77=245+199=0.1×0.3×4=4.31-1.01=1.62+5.3=13-1.5-6.5=2.5×1.7×4=
题目详情
口算:
5.6+3.4= | 10-2.7= | 2.8+3.3= | 1.2×0.8= |
10÷2.5= | 8×1.25= | 3.2÷0.2= | 12-0.5-2.5= |
1.7×0.3= | 2.8×0.4= | 7.7-1.9= | 3.5+6.5= |
0.24÷0.6= | 4.23+1.77= | 245+199= | 0.1×0.3×4= |
4.31-1.01= | 1.62+5.3= | 13-1.5-6.5= | 2.5×1.7×4= |
▼优质解答
答案和解析
5.6+3.4=9 | 10-2.7=7.3 | 2.8+3.3=6.1 | 1.2×0.8=0.96 |
10÷2.5=4 | 8×1.25=10 | 3.2÷0.2=16 | 12-0.5-2.5=9 |
1.7×0.3=0.51 | 2.8×0.4=1.12 | 7.7-1.9=5.8 | 3.5+6.5=10 |
0.24÷0.6=0.4 | 4.23+1.77=6 | 245+199=344 | 0.1×0.3×4=0.12 |
4.31-1.01=3.3 | 1.62+5.3=6.92 | 13-1.5-6.5=5 | 2.5×1.7×4=17 |
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