1000-(318-182)简便计算

2025-03-31 00:44:02
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回答1:

(1)774÷(27+16), =774÷43, =18; (2)39+144+61, =39+61+144, =100+144, =244; (3)27×4×5, =27×(4×5), =27×20, =540; (4)857-318-182, =857-(318+182), =857-500, =357.