2×[(3⼀8-3⼀4×1⼀3)÷1⼀4]脱式计算

2025-03-06 12:53:23
推荐回答(4个)
回答1:

2×[(3/8-3/4×1/3)÷1/4]
=2×[(3/8-1/4)÷1/4]
=2×[1/8÷1/4]
=2×1/2
=1

回答2:

2×[(3/8-3/4×1/3)÷1/4]
=2×[(3/8-1/4)x4]
=2×[1/8x4]
=2×1/2
=1
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回答3:


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回答4:

=2*(3/8-1/4)*4
=2*1/8*4=1