口算250×8=75×0=0÷39=10.3-4=3.8+7.5=1-0.1=913-513=1-510=66+66=
口算
250×8= | 75×0= | 0÷39= |
10.3-4= | 3.8+7.5= | 1-0.1= |
-= | 1-= | += |
口算
250×8= | 75×0= | 0÷39= |
10.3-4= | 3.8+7.5= | 1-0.1= |
-= | 1-= | += |
250×8= | 75×0= | 0÷39= |
10.3-4= | 3.8+7.5= | 1-0.1= |
-= | 1-= | += |
250×8= | 75×0= | 0÷39= |
10.3-4= | 3.8+7.5= | 1-0.1= |
-= | 1-= | += |
250×8= | 75×0= | 0÷39= |
250×8= | 75×0= | 0÷39= | 10.3-4= | 3.8+7.5= | 1-0.1= |
10.3-4= | 3.8+7.5= | 1-0.1= | -= | 1-= | += |
-= | -=9 |
13 |
9 |
9 | 13 |
13 | 5 |
13 |
5 |
5 | 13 |
13 | 1-= | =5 |
10 |
5 |
5 | 10 |
10 | += | +=6 |
6 |
6 |
6 | 6 |
6 | 6 |
6 |
6 |
6 | 6 |
6 |
答案和解析
250×8=2000 | 75×0=0 | 0÷39=0 |
10.3-4=6.3 | 3.8+7.5=11.3 | 1-0.1=0.9 |
-= | 1-= | +=2 |
250×8=2000 | 75×0=0 | 0÷39=0 |
10.3-4=6.3 | 3.8+7.5=11.3 | 1-0.1=0.9 |
-= | 1-= | +=2 |
250×8=2000 | 75×0=0 | 0÷39=0 |
250×8=2000 | 250×8=2000
75×0=0 | 75×0=0
0÷39=0 | 0÷39=0
10.3-4=6.3 | 3.8+7.5=11.3 | 1-0.1=0.9 |
10.3-4=6.3 | 10.3-4=6.3
3.8+7.5=11.3 | 3.8+7.5=11.3
1-0.1=0.9 | 1-0.1=0.9
-= | 1-= | +=2 |
-= | -=9 |
13 |
9 |
9 | 9
13 |
13 | 13-
5 |
13 |
5 |
5 | 5
13 |
13 | 13=
4 |
13 |
4 |
4 | 4
13 |
13 | 13
1-= | 1-
=5 |
10 |
5 |
5 | 5
10 |
10 | 10=
1 |
2 |
1 |
1 | 1
2 |
2 | 2
+=2 | +=26 |
6 |
6 |
6 | 6
6 |
6 | 6+
6 |
6 |
6 |
6 | 6
6 |
6 | 6=2
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