题目内容
| 计算并验算: 306×5=______; | 576÷8=______; | 814÷4=______; |
| (60+80)÷7=______; | 894-60×3=______; | 6×29×5=______. |
(1)306×5=1530,
306
;
验算:
306
5
;
(2)576÷8=72;
72
8
;
验算:
72
;
(3)814÷4=203…2;
203
4
;
验算:
203
;
(4)(60+80)÷7,
=140÷7,
=20;
(5)894-60×3,
=894-180,
=714;
(6)6×29×5,
=174×5,
=870;
故答案为:1530,72,203…2,20,714,870.
306
| ×5 |
| 1530 |
验算:
306
5
| 1530 |
| 15 |
| 30 |
| 30 |
| 0 |
(2)576÷8=72;
72
8
| 576 |
| 56 |
| 16 |
| 16 |
| 0 |
验算:
72
| ×8 |
| 576 |
(3)814÷4=203…2;
203
4
| 814 |
| 8 |
| 14 |
| 12 |
| 2 |
验算:
203
| ×4 |
| 812 |
| +2 |
| 814 |
(4)(60+80)÷7,
=140÷7,
=20;
(5)894-60×3,
=894-180,
=714;
(6)6×29×5,
=174×5,
=870;
故答案为:1530,72,203…2,20,714,870.
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