9-1=
8-2=
9-8=
7-3=
8-4=
9-4=
8-6=
9-2=
8-3=
9-5=
5-2=
7-1=
7-5=
9-6=
8-5=
9-7=
7-2=
9-3=
7-4=
6-2=
8-7=
8
8-2=
6
9-8=
1
7-3=
4
8-4=
4
9-4=
5
8-6=
2
9-2=
7
8-3=
5
9-5=
4
5-2=
3
7-1=
6
7-5=
2
9-6=
3
8-5=
3
9-7=
2
7-2=
5
9-3=
6
7-4=
3
6-2=
4
8-7=
1
答案:
解析:这些题目都是基础的减法题,考查对6-9数字减法的掌握。
答案:
$9 - 1 = 8$
$8 - 2 = 6$
$9 - 8 = 1$
$7 - 3 = 4$
$8 - 4 = 4$
$9 - 4 = 5$
$8 - 6 = 2$
$9 - 2 = 7$
$8 - 3 = 5$
$9 - 5 = 4$
$5 - 2 = 3$
$7 - 1 = 6$
$7 - 5 = 2$
$9 - 6 = 3$
$8 - 5 = 3$
$9 - 7 = 2$
$7 - 2 = 5$
$9 - 3 = 6$
$7 - 4 = 3$
$6 - 2 = 4$
$8 - 7 = 1$
答案:
$9 - 1 = 8$
$8 - 2 = 6$
$9 - 8 = 1$
$7 - 3 = 4$
$8 - 4 = 4$
$9 - 4 = 5$
$8 - 6 = 2$
$9 - 2 = 7$
$8 - 3 = 5$
$9 - 5 = 4$
$5 - 2 = 3$
$7 - 1 = 6$
$7 - 5 = 2$
$9 - 6 = 3$
$8 - 5 = 3$
$9 - 7 = 2$
$7 - 2 = 5$
$9 - 3 = 6$
$7 - 4 = 3$
$6 - 2 = 4$
$8 - 7 = 1$
9-4=
4+3=
7-2=
8-3=
5+4=
2+6=
5-2=
9-6=
3+4=
8+1=
5+3=
6-4=
9-8=
4-2=
7+2=
8-5=
7-4=
3+5=
2+4=
5-3=
7-5=
5
4+3=
7
7-2=
5
8-3=
5
5+4=
9
2+6=
8
5-2=
3
9-6=
3
3+4=
7
8+1=
9
5+3=
8
6-4=
2
9-8=
1
4-2=
2
7+2=
9
8-5=
3
7-4=
3
3+5=
8
2+4=
6
5-3=
2
7-5=
2
答案:
解析:这些题目都是基础加减法运算,考查对6~9数字的加减掌握。
答案:
5
7
5
5
9
8
3
3
7
9
8
2
1
2
9
3
3
8
6
2
2
答案:
5
7
5
5
9
8
3
3
7
9
8
2
1
2
9
3
3
8
6
2
2
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