文档介绍：75+21=
96
69-57= 12
49+37=
86
81-25= 56
40
÷8= 5
25 ×3= 75
268+125= 393
280+40=
320
66-22= 44
46
×20=
920
85-42= 43
90-31= 59
60 ×9= 540
55+41=
96
30
×4= 120
581+12=
593
400 ×5=
2000
45 ÷3= 15
51+31=
82
13
×3= 39
60 ÷4= 15
120-50= 70
300-64= 236
64 ×10=
640
6+6
×7= 48
400 ×5=
2000
50-31= 19
425 ×0=
0
528-0= 528
450+80=
530
57+140=
197
800 ×2=
1600
3000-400= 2600
420
÷7=
60
6×80+20= 500
420-330= 90
5×28= 140
60 ×5= 300
17 ×3= 51
212+88=
300
630 ÷9=
70
350 ÷7=
50
700 ×2=
1400
18 ×4= 72
320
×3=
960
60 ×15=
900
72
÷6÷2= 6
400 ×3=
1200
8+2
×20= 48
22+40=
62
7×8-7= 49
56
÷8= 7
380-190= 190
400
×6=
2400
50-23= 27
35 ×0= 0
40
×6= 240
300 ×6=
1800
7+3
×4= 19
90-26= 64
8×6+7= 55
522+23=
545
6×4÷2= 12
120
×4=
480
80
×5= 400
40 ×5= 200
15
×5+5= 80
600-50= 550
56 ×2= 112
200-36= 164
15+5 ×3= 30
380+50=
430
789+0=
789
300
÷5=
60
15
×4+8= 68
680 ×0=
0
40
×25=
1000
6×6+6= 42
436-24= 412
111
×9=
999
120 ×3=
360
360+80=
440
300 ×7=
2100
85+247=
332
310
×3=
930
200 ×5=
1000
320 ×2=
640
660 ÷6=
110
700
×2=
1400
80
×3= 240
70+550=
620
800 ×6=
4800
500 ×4=
2000
540
÷9=
60
14
×5= 70
350-80= 270
570+50=
620
23 ×3= 69
180
÷3=
60
200
×8=
1600
530-70= 460
850 ×2=
1700
263-80= 183
850
÷2=
425
98+26 ×0= 98
102 ×