直接写得数. 0.4+1.5= 8.6-7= 1+0.45= 7×0.9= 0.78×0.1= 5.6÷7= 0.36÷0.09= 4.3-2

2025-05-01 17:06:48
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回答1:

解:0.4+1.5=1.9, 8.6-7=1.6, 1+0.45=1.45, 7×0.9=6.3, 0.78×0.1=0.078, 5.6÷7=0.8,
0.36÷0.09=4, 4.3-2.3=2, 9.6÷0.3=32, 2.3+4.7=7, 3.2÷32=0.1, 2.4÷0.08=30.