一、口算。
65 + 36 =
52 ÷ 26 =
5 × 92 =
147 - 98 =
25 × 80 =
780 ÷ 13 =
570 ÷ 3 =
46 + 16 =
60 × 90 =
26 × 30 =
108 ÷ 3 =
100 - 48 =
265 ÷ 5 =
18 × 50 =
600 ÷ 60 =
42 ÷ 14 =
300 - 60 =
11 × 60 =
100 ÷ 25 =
120 × 8 =
350 ÷ 2 =
6400 ÷ 400 =
750 ÷ 25 =
200 - 50 =
65 + 36 =
101
52 ÷ 26 =
2
5 × 92 =
460
147 - 98 =
49
25 × 80 =
2000
780 ÷ 13 =
60
570 ÷ 3 =
190
46 + 16 =
62
60 × 90 =
5400
26 × 30 =
780
108 ÷ 3 =
36
100 - 48 =
52
265 ÷ 5 =
53
18 × 50 =
900
600 ÷ 60 =
10
42 ÷ 14 =
3
300 - 60 =
240
11 × 60 =
660
100 ÷ 25 =
4
120 × 8 =
960
350 ÷ 2 =
175
6400 ÷ 400 =
16
750 ÷ 25 =
30
200 - 50 =
150
答案
一、101 2 460 49 2000 60 190 62 5400 780 36 52 53 900 10 3 240 660 4 960 175 16 30 150
解析
65 + 36 = 101
52 ÷ 26 = 2
5 × 92 = 460
147 - 98 = 49
25 × 80 = 2000
780 ÷ 13 = 60
570 ÷ 3 = 190
46 + 16 = 62
60 × 90 = 5400
26 × 30 = 780
108 ÷ 3 = 36
100 - 48 = 52
265 ÷ 5 = 53
18 × 50 = 900
600 ÷ 60 = 10
42 ÷ 14 = 3
300 - 60 = 240
11 × 60 = 660
100 ÷ 25 = 4
120 × 8 = 960
350 ÷ 2 = 175
6400 ÷ 400 = 16
750 ÷ 25 = 30
200 - 50 = 150
52 ÷ 26 = 2
5 × 92 = 460
147 - 98 = 49
25 × 80 = 2000
780 ÷ 13 = 60
570 ÷ 3 = 190
46 + 16 = 62
60 × 90 = 5400
26 × 30 = 780
108 ÷ 3 = 36
100 - 48 = 52
265 ÷ 5 = 53
18 × 50 = 900
600 ÷ 60 = 10
42 ÷ 14 = 3
300 - 60 = 240
11 × 60 = 660
100 ÷ 25 = 4
120 × 8 = 960
350 ÷ 2 = 175
6400 ÷ 400 = 16
750 ÷ 25 = 30
200 - 50 = 150
二、计算下面各题。
713 - 146 ÷ 73 × 98
812 - (278 + 322) ÷ 15
[206 - (63 + 72)] × 58
29 × 23 - 308 + 68
(79 - 26) × (71 + 26)
700 ÷ [(205 - 198) × 4]
713 - 146 ÷ 73 × 98
812 - (278 + 322) ÷ 15
[206 - (63 + 72)] × 58
29 × 23 - 308 + 68
(79 - 26) × (71 + 26)
700 ÷ [(205 - 198) × 4]
答案
二、517 772 4118 427 5141 25
解析
713 - 146 ÷ 73 × 98
= 713 - 2 × 98
= 713 - 196
= 517
812 - (278 + 322) ÷ 15
= 812 - 600 ÷ 15
= 812 - 40
= 772
[206 - (63 + 72)] × 58
= [206 - 135] × 58
= 71 × 58
= 4118
29 × 23 - 308 + 68
= 667 - 308 + 68
= 359 + 68
= 427
(79 - 26) × (71 + 26)
= 53 × 97
= 5141
700 ÷ [(205 - 198) × 4]
= 700 ÷ [7 × 4]
= 700 ÷ 28
= 25
= 713 - 2 × 98
= 713 - 196
= 517
812 - (278 + 322) ÷ 15
= 812 - 600 ÷ 15
= 812 - 40
= 772
[206 - (63 + 72)] × 58
= [206 - 135] × 58
= 71 × 58
= 4118
29 × 23 - 308 + 68
= 667 - 308 + 68
= 359 + 68
= 427
(79 - 26) × (71 + 26)
= 53 × 97
= 5141
700 ÷ [(205 - 198) × 4]
= 700 ÷ [7 × 4]
= 700 ÷ 28
= 25
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