1.用简便方法计算下面各题20.08*3.2+100.4*0.36+2006*0.012+1.003*76
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简便方法,拆开来算,结果是200.720.08*3.2+100.4*0.36+2006*0.012+1.003*76=200.8×0.32+100.4×0.36+2.006×12+1.003×76=100.4×2×0.32+100.4×0.36+1.003×2×12+1.003×76
咨询记录 · 回答于2023-03-19
1.用简便方法计算下面各题20.08*3.2+100.4*0.36+2006*0.012+1.003*76
请回答
简便方法,拆开来算,结果是200.720.08*3.2+100.4*0.36+2006*0.012+1.003*76=200.8×0.32+100.4×0.36+2.006×12+1.003×76=100.4×2×0.32+100.4×0.36+1.003×2×12+1.003×76
你要过程还是只要答案
过程
20.08*3.2+100.4*0.36+2006*0.012+1.003*76=200.8×0.32+100.4×0.36+2.006×12+1.003×76=100.4×2×0.32+100.4×0.36+1.003×2×12+1.003×76=100.4×0.64+100.4×0.36+1.003×24+1.003×76=100.4×(0.64+0.36)+1.003×(24+76)=100.4×1+1.003×100=100.4+100.3=200.7
利用乘法分配律进行简便运算
谢谢
好的,过程我会做的详细一点,要花些时间,这样会看清楚一点