2+5=
7-2=
8+1=
8-2=
8-5=
4-2=
7-1=
1+7=
7-4=
3+4=
6+2=
4+3=
5+2=
8-3=
9-7=
2+3=
5+3=
2+7=
7+2=
8-4=
9-3=
7
7-2=
5
8+1=
9
8-2=
6
8-5=
3
4-2=
2
7-1=
6
1+7=
8
7-4=
3
3+4=
7
6+2=
8
4+3=
7
5+2=
7
8-3=
5
9-7=
2
2+3=
5
5+3=
8
2+7=
9
7+2=
9
8-4=
4
9-3=
6
答案:
解析:这些题目都是基础的加减法口算题,考查的是一年级学生对基础算术运算的掌握程度。
答案:
2 + 5 = 7
7 - 2 = 5
8 + 1 = 9
8 - 2 = 6
8 - 5 = 3
4 - 2 = 2
7 - 1 = 6
1 + 7 = 8
7 - 4 = 3
3 + 4 = 7
6 + 2 = 8
4 + 3 = 7
5 + 2 = 7
8 - 3 = 5
9 - 7 = 2
2 + 3 = 5
5 + 3 = 8
2 + 7 = 9
7 + 2 = 9
8 - 4 = 4
9 - 3 = 6
答案:
2 + 5 = 7
7 - 2 = 5
8 + 1 = 9
8 - 2 = 6
8 - 5 = 3
4 - 2 = 2
7 - 1 = 6
1 + 7 = 8
7 - 4 = 3
3 + 4 = 7
6 + 2 = 8
4 + 3 = 7
5 + 2 = 7
8 - 3 = 5
9 - 7 = 2
2 + 3 = 5
5 + 3 = 8
2 + 7 = 9
7 + 2 = 9
8 - 4 = 4
9 - 3 = 6
9-4=
2+2=
7-3=
5+1=
9-5=
7-5=
8-1=
2+4=
7+1=
5+4=
3+6=
9-6=
2+6=
6-5=
3+5=
8-7=
4+4=
7-6=
9-8=
8-6=
4+5=
5
2+2=
4
7-3=
4
5+1=
6
9-5=
4
7-5=
2
8-1=
7
2+4=
6
7+1=
8
5+4=
9
3+6=
9
9-6=
3
2+6=
8
6-5=
1
3+5=
8
8-7=
1
4+4=
8
7-6=
1
9-8=
1
8-6=
2
4+5=
9
答案:
解析:这些题目都是基础算术题,涉及到加法和减法的基本运算。根据题目要求,我们需要直接计算出结果。
答案如下:
$9 - 4 = 5$
$2 + 2 = 4$
$7 - 3 = 4$
$5 + 1 = 6$
$9 - 5 = 4$
$7 - 5 = 2$
$8 - 1 = 7$
$2 + 4 = 6$
$7 + 1 = 8$
$5 + 4 = 9$
$3 + 6 = 9$
$9 - 6 = 3$
$2 + 6 = 8$
$6 - 5 = 1$
$3 + 5 = 8$
$8 - 7 = 1$
$4 + 4 = 8$
$7 - 6 = 1$
$9 - 8 = 1$
$8 - 6 = 2$
$4 + 5 = 9$
答案如下:
$9 - 4 = 5$
$2 + 2 = 4$
$7 - 3 = 4$
$5 + 1 = 6$
$9 - 5 = 4$
$7 - 5 = 2$
$8 - 1 = 7$
$2 + 4 = 6$
$7 + 1 = 8$
$5 + 4 = 9$
$3 + 6 = 9$
$9 - 6 = 3$
$2 + 6 = 8$
$6 - 5 = 1$
$3 + 5 = 8$
$8 - 7 = 1$
$4 + 4 = 8$
$7 - 6 = 1$
$9 - 8 = 1$
$8 - 6 = 2$
$4 + 5 = 9$
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