计算下面各题 6.25-40÷16×2.5 10+24 ( ) [ ] .
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(1)6.25-40÷16×2.5 =6.25-40×2.5÷16, =6.25-100÷16, =6.25-6.25, =0; (2)10+24 =10+24× , =10+9, =19; (3)( ) = ×2, = ; (4) - × , = - , = ; (5) × × = × × , =1× × , = ; (6)[ ] . =[ - ]× , = × , = .
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