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列竖式计算.791÷7= 209÷3= 840÷5= 562÷4= 824÷8=...

791÷7=113; 113 7 791 7 9 7 21 21 0 209÷3=69…2; 69 3 209 18 29 27 2 840÷5=168; 168 5 840 5 34 30 40 40 0 562÷4=140…2; 140 4 562 4 16 16 2 824÷8=103; 103 8 824 8 24 24 0 验算:103 ×8 824 ,846÷6=141; 141 6 846 6 24 24 6 6 ...

好的时候45

(1)680÷4=170; (2)544÷6=90…4; (3)420÷5=84; (4)403÷8=50…3 (5)306÷3=102; (6)791÷7=113;

649×7=4543★514÷3=171…1验算:420×5=2100★624÷6=104验算:791÷7=113508×9=4572

791除3就是3除以791 你说的是791除以3吧 791 ÷ 3 = 263.6(6上面点个点,表示6循环) 竖式见图:

(1)708×4=2832(2)456÷4=114验算:(3)497×3=1491(4)791÷6=131…5验算:

(1)2.64×1.7-2.64×0.7 =2.64×(1.7-0.7) =2.64×1 =2.64 (2)31.5×1.07-3.15×0.7 =3.15×10.7-3.15×0.7 =3.15×(10.7-0.7) =3.15×10 =31.5 (3)2.7×5.7-2.7+5.3×2.7 =2.7×(5.7-1+5.3) =2.7×10 =27 (4)0.625÷0.125×0.8 =(0.625×0.8)×8÷...

791÷7=113 1 1 377 9 1 7 9 7 2 1 2 1 0605÷5=121 1 2 156 0 5 5 1 0 5 1 0 5 50980÷7=140 1 4 079 8 0 7 2 8 2 8 039×27=1053 3 9×2 7. 2 7 3 7 81 0 5 3验算:

(1)83×41=3403; (2)791÷7=113; (3)98×67=6566; (4)703÷5=140…3.

(1)791÷7=113; 1137791 7 . 9 7 . 21 21 . 0 验算: 113× 7 . 791 (2)918÷9=102; 1029918 9 . 18 18 . 0

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