單項(xiàng)選擇題如果□-6=8,那么(□×2)—(6×2)=()

A.8
B.4
C.16
D.32


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1.單項(xiàng)選擇題算式603-[124×3+137-(69+68)]的正確答案是()

A.230
B.231
C.232

2.單項(xiàng)選擇題計(jì)算(8.2+6.21+6.21)×3.5,下面幾種計(jì)算方法中最簡(jiǎn)便的方法是()

A.8.2×3.5+6.21×3.5+6.21×3.5
B.(8.2+6.21×2)×3.5
C.6.21×(2+1+1)×3.5
D.6.21×[(2+1+1×3.5)]

3.單項(xiàng)選擇題40-[12+(10-3)×4]的得數(shù)是()

A.1
B.0
C.10

4.單項(xiàng)選擇題1-1×(0÷1)+1÷1的的數(shù)是()

A.2
B.0
C.1
D.3