题目内容
| 544÷8= | 80×45= | *615÷4= |
| *49×78= | 840÷8= | 85×34= |
544÷8=68;
68
;
80×45=3600;
45
;
615÷4=153…3;
153
;
验算:153
;
49×78=3822;
49
;
840÷8=105;
105
;
85×34=2890;
85
;
验算:
34
.
68
| 8 | 544 |
| 48 |
| 64 |
| 64 |
| 0 |
80×45=3600;
45
| ×80 |
| 3600 |
615÷4=153…3;
153
| 4 | 615 |
| 4 |
| 21 |
| 20 |
| 15 |
| 12 |
| 3 |
验算:153
| ×4 |
| 612 |
| +3 |
| 615 |
49×78=3822;
49
| ×78 |
| 392 |
| 343 |
| 3822 |
840÷8=105;
105
| 8 | 840 |
| 8 |
| 40 |
| 40 |
| 0 |
85×34=2890;
85
| ×34 |
| 340 |
| 255 |
| 2890 |
验算:
34
| 85 | 2890 |
| 255 |
| 340 |
| 340 |
| 0 |
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