《2025年口算训练二年级数学上册北师大版双色升级版》

第33片
$16 + 24 = $
$30 - 24 = $
$100 - 37 = $
$56 - 12 = $
$18 + 35 = $
$8 + 15 = $
$40 - 18 = $
$54 - 36 = $
$100 - 25 = $
$48 - 28 = $
$16 + 27 = $
$30 - 8 = $
$61 - 35 = $
$16 + 26 = $
$37 + 34 = $
$59 + 6 = $
$29 + 9 = $
$41 - 24 = $
$57 + 16 = $
$100 - 21 = $

答案： 解析：这些题目都是基础的加减法运算，考查的是100以内数的加减法运算能力。
答案：
$16 + 24 = 40$
$30 - 24 = 6$
$100 - 37 = 63$
$56 - 12 = 44$
$18 + 35 = 53$
$8 + 15 = 23$
$40 - 18 = 22$
$54 - 36 = 18$
$100 - 25 = 75$
$48 - 28 = 20$
$16 + 27 = 43$
$30 - 8 = 22$
$61 - 35 = 26$
$16 + 26 = 42$
$37 + 34 = 71$
$59 + 6 = 65$
$29 + 9 = 38$
$41 - 24 = 17$
$57 + 16 = 73$
$100 - 21 = 79$

第34片
$30 + 19 = $
$27 + 25 = $
$100 - 34 = $
$48 - 25 = $
$75 - 48 = $
$27 + 46 = $
$70 - 56 = $
$27 + 38 = $
$48 + 15 = $
$50 - 29 = $
$63 - 49 = $
$81 - 48 = $
$20 + 42 = $
$29 + 7 = $
$48 + 32 = $
$22 + 49 = $
$100 - 35 = $
$80 - 25 = $
$92 - 81 = $
$50 + 31 = $

答案： 解析：题目考查的是100以内数的加减运算，直接进行口算即可。
答案：
$30 + 19 = 49$
$27 + 25 = 52$
$100 - 34 = 66$
$48 - 25 = 23$
$75 - 48 = 27$
$27 + 46 = 73$
$70 - 56 = 14$
$27 + 38 = 65$
$48 + 15 = 63$
$50 - 29 = 21$
$63 - 49 = 14$
$81 - 48 = 33$
$20 + 42 = 62$
$29 + 7 = 36$
$48 + 32 = 80$
$22 + 49 = 71$
$100 - 35 = 65$
$80 - 25 = 55$
$92 - 81 = 11$
$50 + 31 = 81$

第35片
$□ + 23 = 100$
$64 - □ = 15$
$32 + □ = 61$
$19 + □ = 54$
$□ + 23 = 59$
$□ - 16 = 84$
$100 - □ = 28$
$□ + 37 = 58$
$61 - □ = 25$
$26 + □ = 78$
$18 + □ = 100$
$□ + 22 = 53$
$□ - 34 = 66$
$36 + □ = 100$
$84 - □ = 40$
$36 + □ = 70$
$19 + □ = 38$
$□ + 45 = 100$
$□ - 16 = 36$
$22 + □ = 80$

答案： 解析：这些题目都是基础的加减法运算，考查的是100以内数的加减法运算能力。根据加减法的基本原理，我们可以直接通过计算得出每个空格中应填的数字。
答案：
77；49；29；35；36；100；72；21；36；52；82；31；100；64；44；34；19；55；52；58。