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 | +=12 |
2 | 2
7 |
7 | 7+
=15 |
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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