
计算,下面各题能简便的要简便计算。78×63-78+38×78
计算下面各题,能简便的要简便计算.3.72+5.3+7.28+3.77000÷125÷81600-600÷75+2535×125×1678×63-78+38×78(480...
计算下面各题,能简便的要简便计算. 3.72+5.3+7.28+3.7 7000÷125÷8 1600-600÷75+25 35×125×16 78×63-78+38×78 (480+120÷15)×50.
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(1)3.72+5.3+7.28+3.7, =(3.72+7.28)+(5.3+3.7), =11+9, =20; (2)7000÷125÷8, =7000÷(125×8), =7000÷1000, =7; (3)1600-600÷75+25, =1600-8+25, =1592+25, =1617; (4)35×125×16, =(35×2)×(125×8), =70×1000, =70000; (5)78×63-78+38×78, =78×(63-1+38), =78×100, =7800; (6)(480+120÷15)×50, =(480+8)×50, =480×50+8×50, =24000+400, =24400.
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