用计算器计算练习1.11081 2170 503745 159 99 12 92106 2032.1111111101 2222222202 3333333303 4444444404 5555555505 99999999093.原式=(600000-1)+(50000-1)+(4000-1)+(300-1)+(20-1) =654320-5 =654315 原式=(7000000-1)+(700000-1)+(70000-1)+(7000-1)+(700-1)+(70-1) =7777770-6 =77777644. 苹果:960÷80=12(千克/箱)桃子:960÷30=32(千克/箱)梨:960÷60=16(千克/箱)12<16<32答:桃子平均每箱最重。苹果平均每箱最轻。5. 35×12 |