1. 直接写出得数。
1×6=
4×3=
20+65=
5×6−5=
3×6=
4×4=
2×1=
6×2+4=
3×4=
5×1=
4×6=
2×2+2=
5×5=
6×3=
4×5=
6×5+6=
69−40=
6×6=
3×5=
4×2+8=
6×4=
59+8=
3+6=
3×3+5=
30+6=
6×1=
40−2=
1×1−0=
6×5=
7×2=
5×6=
4×6−6=
1×6=
4×3=
20+65=
5×6−5=
3×6=
4×4=
2×1=
6×2+4=
3×4=
5×1=
4×6=
2×2+2=
5×5=
6×3=
4×5=
6×5+6=
69−40=
6×6=
3×5=
4×2+8=
6×4=
59+8=
3+6=
3×3+5=
30+6=
6×1=
40−2=
1×1−0=
6×5=
7×2=
5×6=
4×6−6=
答案
1. 6 12 85 25
18 16 2 16
12 5 24 6
25 18 20 36
29 36 15 16
24 67 9 14
36 6 38 1
30 14 30 18
18 16 2 16
12 5 24 6
25 18 20 36
29 36 15 16
24 67 9 14
36 6 38 1
30 14 30 18
2. 填表。
| × | 1 | 2 | 3 | 4 | 5 | 6 |
| --- | --- | --- | --- | --- | --- | --- |
| 4 | | |
| | | |
| 6 | | | | | | |
| × | 1 | 2 | 3 | 4 | 5 | 6 |
| --- | --- | --- | --- | --- | --- | --- |
| 4 | | |
| 6 | | | | | | |
答案
2.
| × | 1 | 2 | 3 | 4 | 5 | 6 |
| --- | --- | --- | --- | --- | --- | --- |
| 4 | 4 | 8 | 12 | 16 | 20 | 24 |
| 6 | 6 | 12 | 18 | 24 | 30 | 36 |
| × | 1 | 2 | 3 | 4 | 5 | 6 |
| --- | --- | --- | --- | --- | --- | --- |
| 4 | 4 | 8 | 12 | 16 | 20 | 24 |
| 6 | 6 | 12 | 18 | 24 | 30 | 36 |
3. 一共有多少本书?
□×□+□=□
答案
3. 6×3+2=20
丁丁在计算一道乘法算式时,把一个乘数2看成了6,结果算出的积是12,正确的积是(
4
)。答案
4
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