直接写得数．210÷7=13×30=6.2+2.6=12×50=0.3+0.4=560÷8=10×65=7.6-3.2=1-23=27+57=79-39=34-24=
直接写得数．
210÷7= | 13×30= | 6.2+2.6= | 12×50= |
| 0.3+0.4= | 560÷8= | 10×65= | 7.6-3.2= |
| 1-= | += | -= | -= |
直接写得数．
210÷7= | 13×30= | 6.2+2.6= | 12×50= |
| 0.3+0.4= | 560÷8= | 10×65= | 7.6-3.2= |
| 1-= | += | -= | -= |
直接写得数．
210÷7= | 13×30= | 6.2+2.6= | 12×50= |
直接写得数．
210÷7= | 13×30= | 6.2+2.6= | 12×50= | | 0.3+0.4= | 560÷8= | 10×65= | 7.6-3.2= |
0.3+0.4= | 560÷8= | 10×65= | 7.6-3.2= | | 1-= | += | -= | -= |
1-= | =| 2 |
2 | | 3 |
3 | += | +=| 2 |
2 | | 7 |
7 | =| 5 |
5 | | 7 |
7 | -= | -=| 7 |
7 | | 9 |
9 | =| 3 |
3 | | 9 |
9 | -= | -=| 3 |
3 | | 4 |
4 | =| 2 |
2 | | 4 |
4 |
答案和解析
210÷7=30 |
13×30=390 |
6.2+2.6=8.8 |
12×50=600 |
| 0.3+0.4=0.7 | 560÷8=70 | 10×65=650 | 7.6-3.2=4.4 |
| 1-= | +=1 | -= | -= |
210÷7=30 |
13×30=390 |
6.2+2.6=8.8 |
12×50=600 |
210÷7=30 | 210÷7=30
13×30=390 | 13×30=390
6.2+2.6=8.8 | 6.2+2.6=8.8
12×50=600 | 12×50=600
| 0.3+0.4=0.7 | 560÷8=70 | 10×65=650 | 7.6-3.2=4.4 |
0.3+0.4=0.7 | 0.3+0.4=0.7
560÷8=70 | 560÷8=70
10×65=650 | 10×65=650
7.6-3.2=4.4 | 7.6-3.2=4.4
| 1-= | +=1 | -= | -= |
1-= | 1-
=| 2 |
2 | 2
| 3 |
3 | 3=
| 1 |
1 | 1
| 3 |
3 | 3
+=1 | +=1| 2 |
2 | 2
| 7 |
7 | 7+
=1| 5 |
5 | 5
| 7 |
7 | 7=1
-= | -=| 7 |
7 | 7
| 9 |
9 | 9-
=| 3 |
3 | 3
| 9 |
9 | 9=
| 4 |
4 | 4
| 9 |
9 | 9
-= | -=| 3 |
3 | 3
| 4 |
4 | 4-
=| 2 |
2 | 2
| 4 |
4 | 4=
| 1 |
1 | 1
| 4 |
4 | 4
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