《2025年口算训练二年级数学上册北师大版双色升级版》

第10片
$48 - 25 = $23
$39 - 16 = $23
$32 + 12 = $44
$26 - 13 = $13
$58 - 37 = $21
$45 - 13 = $32
$68 - 14 = $54
$39 - 24 = $15
$33 + 15 = $48
$23 + 33 = $56
$24 + 25 = $49
$12 - 6 = $6
$23 + 16 = $39
$72 - 42 = $30
$58 - 27 = $31
$77 + 12 = $89
$18 + 11 = $29
$65 - 15 = $50
$15 - 8 = $7
$7 + 9 = $16

答案： 解析：这些题目都是基础的加减法运算，考查学生对100以内数的加减法的掌握。
答案：
$48 - 25 = 23$
$39 - 16 = 23$
$32 + 12 = 44$
$26 - 13 = 13$
$58 - 37 = 21$
$45 - 13 = 32$
$68 - 14 = 54$
$39 - 24 = 15$
$33 + 15 = 48$
$23 + 33 = 56$
$24 + 25 = 49$
$12 - 6 = 6$
$23 + 16 = 39$
$72 - 42 = 30$
$58 - 27 = 31$
$77 + 12 = 89$
$18 + 11 = 29$
$65 - 15 = 50$
$15 - 8 = 7$
$7 + 9 = 16$

第11片
$100 - 20 = $80
$95 - 24 = $71
$77 - 16 = $61
$59 - 27 = $32
$30 + 47 = $77
$66 + 10 = $76
$53 + 15 = $68
$75 - 22 = $53
$16 - 7 = $9
$18 - 9 = $9
$37 - 24 = $13
$29 + 40 = $69
$98 - 12 = $86
$46 - 15 = $31
$59 - 18 = $41
$88 - 66 = $22
$79 + 10 = $89
$43 + 26 = $69
$16 - 9 = $7
$13 - 5 = $8

答案： 解析：这些题目都是基础的加减法运算，考查学生对100以内数的加减法的掌握。
答案：
$100 - 20 = 80$
$95 - 24 = 71$
$77 - 16 = 61$
$59 - 27 = 32$
$30 + 47 = 77$
$66 + 10 = 76$
$53 + 15 = 68$
$75 - 22 = 53$
$16 - 7 = 9$
$18 - 9 = 9$
$37 - 24 = 13$
$29 + 40 = 69$
$98 - 12 = 86$
$46 - 15 = 31$
$59 - 18 = 41$
$88 - 66 = 22$
$79 + 10 = 89$
$43 + 26 = 69$
$16 - 9 = 7$
$13 - 5 = 8$

第12片
在$◯$里填“＞”“＜”或“=”。
$16 - 5 ◯ 15 - 6$
$17 - 8 ◯ 18 - 7$
$57 - 14 ◯ 57 - 15$
$59 - 3 ◯ 56 - 3$
$99 - 47 ◯ 99 - 46$
$98 - 15 ◯ 99 - 16$
$75 - 15 ◯ 75 - 13$
$37 - 16 ◯ 39 - 19$
$34 - 12 ◯ 19 + 10$
$55 - 23 ◯ 24 + 3$
$40 + 25 ◯ 75 - 0$
$100 - 50 ◯ 84 - 34$
$16 - 9 ◯ 15 - 8$
$9 + 5 ◯ 16 - 3$
$8 + 6 ◯ 17 - 4$
$75 - 5 ◯ 85 - 25$
$56 - 12 ◯ 16 + 22$
$42 + 34 ◯ 52 + 24$
$17 + 32 ◯ 65 - 20$

答案： 解析：本题考查的是利用加减法运算来解决比较大小的问题。
对于这类题目，需要先分别计算两边算式的结果，然后再比较它们的大小。
$16 - 5$ ○ $15 - 6$
$16 - 5 = 11$
$15 - 6 = 9$
所以，填 ＞
$17 - 8$ ○ $18 - 7$
$17 - 8 = 9$
$18 - 7 = 11$
所以，填 ＜
$57 - 14$ ○ $57 - 15$
$57 - 14 = 43$
$57 - 15 = 42$
所以，填 ＞
$59 - 3$ ○ $56 - 3$
$59 - 3 = 56$
$56 - 3 = 53$
所以，填 ＞
$99 - 47$ ○ $99 - 46$
$99 - 47 = 52$
$99 - 46 = 53$
所以，填 ＜
$98 - 15$ ○ $99 - 16$
$98 - 15 = 83$
$99 - 16 = 83$
所以，填 =
$75 - 15$ ○ $75 - 13$
$75 - 15 = 60$
$75 - 13 = 62$
所以，填 ＜
$37 - 16$ ○ $39 - 19$
$37 - 16 = 21$
$39 - 19 = 20$
所以，填 ＞
$34 - 12$ ○ $19 + 10$
$34 - 12 = 22$
$19 + 10 = 29$
所以，填 ＜
$55 - 23$ ○ $24 + 3$
$55 - 23 = 32$
$24 + 3 = 27$
所以，填 ＞
$40 + 25$ ○ $75 - 0$
$40 + 25 = 65$
$75 - 0 = 75$
所以，填 ＜
$100 - 50$ ○ $84 - 34$
$100 - 50 = 50$
$84 - 34 = 50$
所以，填 =
$16 - 9$ ○ $15 - 8$
$16 - 9 = 7$
$15 - 8 = 7$
所以，填 =
$9 + 5$ ○ $16 - 3$
$9 + 5 = 14$
$16 - 3 = 13$
所以，填 ＞
$8 + 6$ ○ $17 - 4$
$8 + 6 = 14$
$17 - 4 = 13$
所以，填 ＞
$75 - 5$ ○ $85 - 25$
$75 - 5 = 70$
$85 - 25 = 60$
所以，填 ＞
$56 - 12$ ○ $16 + 22$
$56 - 12 = 44$
$16 + 22 = 38$
所以，填 ＞
$42 + 34$ ○ $52 + 24$
$42 + 34 = 76$
$52 + 24 = 76$
所以，填 =
$17 + 32$ ○ $65 - 20$
$17 + 32 = 49$
$65 - 20 = 45$
所以，填 ＞
答案：＞，＜，＞，＞，＜，=，＜，＞，＜，＞，＜，=，=，＞，＞，＞，＞，=，＞。