题目内容

70×2=
140
140
6×300=
1800
1800
200×8=
1600
1600
850-660=
190
190
80+240=
320
320
7×90=
630
630
5
7
-
2
7
=
3
7
3
7
23×7=
161
161
860-300=
560
560
2700÷9=
300
300
20×40=
800
800
400×8=
3200
3200
4300÷6=
700
700
202÷2=
101
101
256-97=
159
159
7×70+6=
496
496
62+36=
98
98
28+35=
63
63
51-11=
40
40
1800÷2=
900
900
40×5=
200
200
42×3=
126
126
440×2=
880
880
7
8
-
4
8
=
3
8
3
8
300÷5=
60
60
4000÷4=
1000
1000
870-530=
340
340
470+65=
535
535
13×4=
52
52
168+27=
195
195
4×500=
2000
2000
0+58=
58
58
990÷3=
330
330
257-135=
122
122
1
2
+
1
2
=
1
1
206×5=
1030
1030
50×3=
150
150
302+56=
358
358
22×6=
132
132
40×9=
360
360
25×4=
100
100
810÷9=
90
90
0×8+5=
5
5
690÷3=
230
230
90×5-130=
320
320
130×6=
780
780
48÷4=
12
12
1-
3
4
+
1
4
=
1
2
1
2
25+82=
107
107
240÷3=
80
80
35+55=
90
90
8×300=
2400
2400
35×3=
105
105
240+109=
349
349
3
9
+
2
9
=
5
9
5
9
2000÷5=
400
400
400÷5=
80
80
4900÷7=
700
700
260-80=
180
180
(86+34)÷6=
20
20
68-9=
59
59
81-67=
14
14
25+116=
141
141
70×3+39=
249
249
300×3=
900
900
5500÷5=
1100
1100
61-22=
39
39
1-
2
3
=
1
3
1
3
1600÷8=
200
200
200×6=
1200
1200
1
6
+
5
6
=
1
1
21+300=
321
321
9×0=
0
0
1
5
+
2
5
=
3
5
3
5
79+2×0=
79
79
2
8
+
1
8
+
3
8
=
3
4
3
4
56+163=
219
219
1-
1
2
=
1
2
1
2
505÷5=
101
101
200+7×6=
242
242
分析:根据整数分数的加法、减法、乘法和除法的计算方法解答.
解答:解:
70×2=140 6×300=1800 200×8=1600 850-660=190
80+240=320 7×90=630
5
7
-
2
7
=
3
7
23×7=161
860-300=560 2700÷9=300 20×40=800 400×8=3200
4200÷6=700 202÷2=101 256-97=159 7×70+6=496
62+36=98 28+35=63 51-11=40 1800÷2=900
40×5=200 42×3=126 440×2=880
7
8
-
4
8
=
3
8
300÷5=60 4000÷4=1000 870-530=340 470+65=535
13×4=52 168+27=195 4×500=2000 0+58=58
990÷3=330 257-135=122
1
2
+
1
2
=1
206×5=1030
50×3=150 302+56=358 22×6=132 40×9=360
25×4=100 810÷9=90 0×8+5=5 690÷3=230
90×5-130=320 130×6=780 48÷4=12 1-
3
4
+
1
4
=
1
2
25+82=107 240÷3=80 35+55=90 8×300=2400
35×3=105 240+109=349
3
9
+
2
9
=
5
9
2000÷5=400
400÷5=80 4900÷7=700 260-80=180 (86+34)÷6=20
68-9=59 81-67=14 25+116=141 70×3+39=249
300×3=900 5500÷5=1100 61-22=39 1-
2
3
=
1
3
1600÷8=200 200×6=1200
1
6
+
5
6
=1
21+300=321
9×0=0
1
5
+
2
5
=
3
5
79+2×0=79
2
8
+
1
8
+
3
8
=
3
4
56+163=219 1-
1
2
=
1
2
505÷5=101 200+7×6=242
故答案为:140,1800,1600,190,320,630,
3
7
,161,560,300,800,3200,700,101,159,496,98,63,40,900,200,126,880,
3
8
,60,1000,340,535,52,195,2000,58,330,122,1,1030,150,358,132,360,100,90,5,230,320,780,12,
1
2
,107,80,90,2400,105,349,
5
9
,400,80,700,180,20,59,14,141,249,900,1100,39,
1
3
,200,1200,1,321,0,
3
5
,79,
3
4
,219,
1
2
,101,242.
点评:本题主要考查分数的加法、减法、乘法和除法的计算方法,注意计算要细心.
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