《2025年口算训练二年级数学上册北师大版双色升级版》

第59片
19 + 38 = 57
52 - 27 = 25
64 + 18 = 82
79 - 42 = 37
35 + 46 = 81
86 - 57 = 29
27 + 54 = 81
92 - 38 = 54
48 + 35 = 83
97 - 69 = 28
23 + 49 = 72
58 - 29 = 29
67 + 15 = 82
74 - 36 = 38
38 + 52 = 90
85 - 47 = 38
27 + 63 = 90
96 - 58 = 38
46 + 27 = 73
89 - 64 = 25

答案： 19 + 38 = 57
52 - 27 = 25
64 + 18 = 82
79 - 42 = 37
35 + 46 = 81
86 - 57 = 29
27 + 54 = 81
92 - 38 = 54
48 + 35 = 83
97 - 69 = 28
23 + 49 = 72
58 - 29 = 29
67 + 15 = 82
74 - 36 = 38
38 + 52 = 90
85 - 47 = 38
27 + 63 = 90
96 - 58 = 38
46 + 27 = 73
89 - 64 = 25

第60片
17 + 29 =
43 - 18 =
56 + 37 =
68 - 21 =
32 + 49 =
77 - 43 =
24 + 57 =
81 - 36 =
45 + 28 =
93 - 65 =
25 + 36 =
100 - 19 =
57 + 24 =
63 - 28 =
39 + 47 =
84 - 56 =
26 + 38 =
72 - 45 =
53 + 29 =
95 - 67 =

答案： 17 + 29 = 46
43 - 18 = 25
56 + 37 = 93
68 - 21 = 47
32 + 49 = 81
77 - 43 = 34
24 + 57 = 81
81 - 36 = 45
45 + 28 = 73
93 - 65 = 28
25 + 36 = 61
100 - 19 = 81
57 + 24 = 81
63 - 28 = 35
39 + 47 = 86
84 - 56 = 28
26 + 38 = 64
72 - 45 = 27
53 + 29 = 82
95 - 67 = 28

4 + 4 + 4 = 12
$\boxed{4} × \boxed{3} = 12$
3 + 3 + 3 = 9
$3 × 3 = 9$
2 + 2 + 2 + 2 + 2 + 2 = 12
$2 × 6 = 12$
6 + 6 + 6 + 6 = 24
$6 × 4 = 24$
7 + 7 = 14
$7 × 2 = 14$
5 + 5 + 5 + 5 + 5 = 25
$5 × 5 = 25$
8 + 8 + 8 + 8 = 32
$8 × 4 = 32$
9 + 9 + 9 = 27
$9 × 3 = 27$
1 + 1 + 1 + 1 + 1 + 1 + 1 = 7
$1 × 7 = 7$

答案： 4 + 4 + 4 = 12
$\boxed{4} × \boxed{3} = 12$
3 + 3 + 3 = 9
$3 × 3 = 9$
2 + 2 + 2 + 2 + 2 + 2 = 12
$2 × 6 = 12$
6 + 6 + 6 + 6 = 24
$6 × 4 = 24$
7 + 7 = 14
$7 × 2 = 14$
5 + 5 + 5 + 5 + 5 = 25
$5 × 5 = 25$
8 + 8 + 8 + 8 = 32
$8 × 4 = 32$
9 + 9 + 9 = 27
$9 × 3 = 27$
1 + 1 + 1 + 1 + 1 + 1 + 1 = 7
$1 × 7 = 7$