《2025年灵机一动口算心算四年级数学上册苏教版》

1
20 × 3 = 60
75 ÷ 3 = 25
5 × 10 = 50
81 ÷ 9 = 9
25 ÷ 5 = 5
76 + 22 = 98
64 ÷ 16 = 4
68 ÷ 4 = 17
25 × 12 = 300
68 + 70 = 138
423 + 102 = 525
15 × 4 = 60
35 × 11 = 385
13 × 40 = 520
107 - 61 = 46

答案： 20×3=60
75÷3=25
5×10=50
81÷9=9
25÷5=5
76+22=98
64÷16=4
68÷4=17
25×12=300
68+70=138
423+102=525
15×4=60
35×11=385
13×40=520
107-61=46

2
240 ÷ 40 =
120 ÷ 60 =
21 × 50 =
0 ÷ 38 =
5 × 120 =
28 ÷ 7 =
250 × 3 =
24 + 476 =
360 ÷ 90 =
140 ÷ 70 =
70 ÷ 14 =
37 × 20 =
180 ÷ 30 =
0 × 346 =
540 ÷ 90 =

答案： 240 ÷ 40 = 6
120 ÷ 60 = 2
21 × 50 = 1050
0 ÷ 38 = 0
5 × 120 = 600
28 ÷ 7 = 4
250 × 3 = 750
24 + 476 = 500
360 ÷ 90 = 4
140 ÷ 70 = 2
70 ÷ 14 = 5
37 × 20 = 740
180 ÷ 30 = 6
0 × 346 = 0
540 ÷ 90 = 6

3
200 ÷ 40 = 5
125 × 3 = 375
670 - 540 = 130
64 + 36 = 100
400 - 273 = 127
480 ÷ 80 = 6
350 ÷ 50 = 7
25 × 4 = 100
320 ÷ 40 = 8
56 × 5 = 280
420 ÷ 30 = 14
550 ÷ 50 = 11
80 ÷ 16 = 5
17 × 5 = 85
200 ÷ 50 = 4

答案： 解析：这些题目都是基础的数学运算题目，包括除法、乘法和加减法。我们可以直接进行计算。
答案：
$200 ÷ 40 = 5$
$125 × 3 = 375$
$670 - 540 = 130$
$64 + 36 = 100$
$400 - 273 = 127$
$480 ÷ 80 = 6$
$350 ÷ 50 = 7$
$25 × 4 = 100$
$320 ÷ 40 = 8$
$56 × 5 = 280$
$420 ÷ 30 = 14$
$550 ÷ 50 = 11$
$80 ÷ 16 = 5$
$17 × 5 = 85$
$200 ÷ 50 = 4$