42.4+7.6= 1.58+2.42= 23.5+76.5÷0.25= 7.8-5.6= 1.25×4= 34.6÷0.2×4= 0.24÷0.3= 7.8×0.5

2024-12-04 05:39:26
推荐回答(1个)
回答1:


42.4+7.6=50, 1.58+2.42=4, 23.5+76.5÷0.25=329.5, 7.8-5.6=2.2,
1.25×4=5, 34.6÷0.2×4=692, 0.24÷0.3=0.8, 7.8×0.5=3.9,
1÷0.2-1×0.2=4.8, 57÷5.7=10, 8.1-0.05=8.05, 0.2×0.5=0.1.