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680 736÷16 360简算

36×25 =9x4x25 =9x100 =900 680+736÷16-360 =680-360+46 =320+46 =366

解:原式=680-360+46 =320+46 =366 原式=[175-111]x23 =64x23 =8x8x23 =8x184 =1492

680+730÷16-360 =680+45.625-360 =725.625-360 =365.625

680+46—260=420+56=476 先乘除后加减

680+736÷16-360 =(680-360)+46 =320+46 =366 【175-(49+62)】×23 =【175-109】×23 =66×23 =1518

736×5=3680; 7 3 6× 5 . 3 6 8 0 58×9=522; 5 8× 9. 5 2 2 205×4=820; 2 0 5× 4 . 8 2 0 360×5=1800; 3 6 0 × 5. 1 8 0 0 654÷6=109; 1 0 9 66 5 4 6 5 4 5 4 0验算: 1 0 9× 6 . 6 5 4 389÷9=43…2; 4 3 93 8 9 3 6 2 9

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