简便方法计算;5⼀8+3⼀8-5⼀8+3⼀8= 4.28+(5.72-3.99)= 1⼀7* (42+7⼀11)8.1*1⼀6+8.1*5⼀6= 1⼀2*1⼀3除1⼀2*1⼀3=

2024-12-15 00:46:14
推荐回答(2个)
回答1:

计算;
5/8+3/8-5/8+3/8= (5/8-5/8)+(3/8+3/8)=3/4

4.28+(5.72-3.99)= 4.28+5.72-3.99=10-3.99=6.01

1/7* (42+7/11)=1/7×42+1/7×7/11=6+1/11=6 1/11

8.1*1/6+8.1*5/6=8.1(1/6 +5/6)=8.1

1/2*1/3除1/2*1/3=1/3×1/3=1/9

回答2:

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