4214-7^ 2. 45X28=
50 X 80= 3. 3x800 =
420-20 = 4. 45+45=
90+30= 5. 21x30 =
80x80 = 6. 43+38 =
90x50 = 7. 63 一
9=
25+41= 8. 40x70 =
4X94-6= 9. 3x200 =
7500-500 = 10. 360^9 =
460-2= 11. 11x40 =
20x24 = 12. 80x90 =
10x34 = 13. 10x47=
70x40 = 14. 36+56=
34+29= 15. 500+40 =
83一
9~
70+90= 70+2= 140-7=
70+50=
52+35= 7204-8= 9X799~
9X799=
160-60= 1604-8= 150+40=
21004-3=
284-7= 500 X 4= 244-8= 12X20=
420-7 = 3x220 = 480-4=
58+33 =
93-3 = 880^4 = 1200-200 —
—
11x7=
50 X 90= 42X98^ 5X5+52= 50+80=
90+40= 170-90= 110-30=
110-80=
660-6 = 65x10= 540-6= 22x40 =
10x47= 30x70 = 0-93 =
600-6 =
720-8 =
36 + 56=
23x30 =
10x73 =
8004-8 =
6000 + 2000 =
120X4 =
6404-2 =
280^4= 50X50= 81 OH-9=
300X6=
1404-7= 20X31 = 90-65= 52X44 =
1314-6^ 900-3 = 57+29 =
125H-2^
904-9= 16004-2= 71-68= 82 = 9~
620^2 = 660^2 = 640-8 =
880-4 =
0-91 = 1 x4= 3x31 = 58+26 =
44x2 = 960-3= 32x2 =
2x440 =
70+500 = 3x33= 280-4= 9x400= 900x5 = 67-49= 200^4= 8000-1000 = 57+29 = 540-6 = 10x73 = 10x58 = 30x70 =
120x4= 640-8 = 720-9 = 65x10 = 660-3= 700x5 = 41x20=
30x23 = 660-6 =
5900-5000 = 11x40 = 10x36 = 6000+2000 = 80x80 =
29 + 14=
88x10 = 600-6= 22x30 =
400+600 =
800-8 =
21x30 =
720-8 =
33x30 =
22x40 = 440-4= 33x20 = 320-4= 77—29=
0-93 =
640-2=
30x50 =
16. 2104-7=
80X99~ 17. 310x3 =
310x3 = 18. 7x50 =
54+28 = 19. 800-4=
37+56= 20. 53-14=
660-6= 21. 13x3 =
159-4^ 22. 26+57=
480-8= 23. 0-47=
0m54= 24. 89-3 =
0-54= 25. 23x30 =
30x21 = 26. 70x11 =
20x70 = 27. 28x10 =
12x10 = 28. 31x20 =
44x20= 29. 12x40 =
41x20 = 30. 24x20 =
723m9\" 31 ・ 60x40 =
2x31 = 32. 20+35=
900x6=
3X8= 2804-4= 390-3 = 720-9 = 880-8= 42x3 = 60-15 = 32x3 = 17+27= 7x800= 34+56 = 620-2 = 800^8 = 630-3 = 560-7 = 23x3 = 562-7^ ・3)x3 = 60x50 = 7x11 = 30x40 = 28x1 = 20x50 = 31x2= 22x3 = 12x4= 220x3 = 21x30= 50x30 = 10x89= 90x30 = 33x20 = 45+35= 34x20 =
804-2= 90X100= 230x3 = 4700-700 = 879一
8~ 1700-800 =
900-3 = 70x7= 840-4= 7x700= 96-3 = 6x800 = 33+57= 62—33 = 440-4= 12x30= 241-2^ 13x30 = 70x80 = 50x70= 24x20 = 20x13= 10x36 = 14x20 = 60x90 = 22x30= 22x40 = 10x46 = 0x45 = 69x10 = 21x40 = 40x70 = 32x20 = 33x30 =
40X10= 84-1 X 8= 11x4 = 600-3 = 9x500= 90-3 = 450-9 = 1200-715= 2x14= 840-2 = 2x330 = 960-3 = 600x3 = 500 + 500 = 93-3= 7x80 = 30-(3-1) = 7x81 = 10x68= 24x2 = 12x20 = 1x36= 30x33 = 6x90 = 39x10 = 22x4= 90x40 = 3x700 = 50x70 = 13x30 = 30x20 = 48 + 19 = 70x60 = 31x20 =
1804-3= 20+90= 82-55= 48+28= 80 + 17= 180-3 = 360-6 = 299m6~ 140-2 = 430x2 = 50x6=
1500-903 = 37+8 = 33x2 = 24x2 = 48x10 = 24x2-3 = 53x10 = 40x50 = 30x70= 30x21 = 10x19= 21x40 = 20x33 = 21x2 = 30x80 = 200x3 = 33x30 = 800x7= 23x30 = 40x90 = 70x6 = 84x1 = 702x6=
(2333. 70x30 =
6x500 = 34. 80x70 =
44+20 = 35. 360-9=
20x34 = 36. 21x40 =
880-2= 37. 400+300 =
30x80 = 38. 200-4=
40x12 = 39. 43x2 =
30x12= 40. 52-29 =
33x30 = 41 ・ 20x23 =
29+61 = 42. 420-6=
33x20 = 43. 750—50 =
300+700 = 44. 49+33 =
230x3 = 45. 40x70 =
10x80 = 46. 440-4=
13x3 = 47. 4204-2 =
58—0 = 48. 0-51 =
930-3 = 49. 42X42
心
150-60=
2x42 = 8x70= 201x4 = 41x39^ 10x34= 300x3 = 80x40 = 70x20= 34+39 = 41x20= 31x20 = 84—47= 0x20 = 46+24= 240x2 = 50x5 = 440-4= 410 — 7\" 300-6= 900-9 = 480-8 = 420^2 = 707-7=
46 —9~
43+38 = 51 X82~ 32x3= 600x7 = 63-3 = 2x440 = 0x85 = 83-57= 66X54~ 700+600=
86-47= 42x20 = 0-20 = 43x20 = 40x90 = 80x4 = 10x37= 400-4 = 360-6 = 97x10 = 600+90= 630-7= 75+18 = 0-73 = 52+39 = 800x3 = 30x32= 30x30 = 240-4= 810-9 = 5010+2003 = 820^2 = 23x3 = 10-5= 90x50 = 500+40 = 48-4 = 120x3 = 160-4 = 48-2 = 70-7= 29 + 68 = 66+26= 1504-2^
5x90 = 400+300 = 6x60 = 46+37 = 90x60 = 65x0 = 20x50 = 0x66 = 99x10= 700-7= 4500-700 = 71-23 = 23+48 = 42x20 = 400-8 = 60x50 = 0x35= 50x90 = 69x10 = 630-9 =
77—48= 70x11 = 78—36 = 90+20= 84—65 = 88x10 = 540-9 = 480-2 = 800+700 = 480-2 = 5x900= 68-49 = 131F6\" 45X52
〜
22x30 = 5x900 = 22x40 = 420-6 = 490-7= 330-3 = 2000+300 = 50x30 = 12x20 = 33x30 = 44-37= 0-43 = 90x30 = 100-5= 480-r8= 410x2 = 10x35= 80x30= 22x40= 30x23 =
300-5 = 4500-500 = 11x4= 17-8= 43-16= 700x5 = 90-9 = 39-3 = 690-3 = 60x5 = 84-4= 80x7= 83一
9~ 70+80=
50. 57-38 = 660-3 = 51. 8X7+6=
50-244-4= 52 72-724-6=
354-5=
\"6 1 53.
1500-700 = 960-3 = 6X7+6= 9+94-9= 8+2X10= 50X60 =
6 4
—I—=
42x2 = 180^9 = 364-34-2= 800-8004-4= 90—304-3= 7X9+4= 6 1 - — — 5 5 8 4
‘ '——
99-3 = 65+15= 5X5+4= 8X9-7= 6X80-20= 6X9+8=
770-7= 660^6 = 50-5= 26+9= 804-4= 7X8+4=
7 3
—
13 13 1 2
—1—=
7 7 2 4 9 9
3 3
--- 1 -- =
11 11
10 10 6 4 -------- = 17 17
10+3.5= 1.25—0.75 = 1・5+3.6= 5.2-3.2 = 4.8—5.74= 4.6-3.2 = 0.9+6.3 = 1・6+5.3 = 1.2-0.3 = 0.8-0.3 = ()X 8=400 1.6-1.32 =
54. 3.9+12.6 =
5.3 + 6.8 = 55. 4.2+1.5=
9.34-6.8 = 56. 1.6—0.7=
1.2 + 3.6= 57. 6.2—3.8 =
0.25-0.15 = 58. 9X4+6= ()—300=500 59. 1000- (
1.9 + 5.2 = 4.3 + 2.6 = 6.2-3.1 = 6.6-3.1 = 5.2-0.8 = 1.02-1.02= 3.6+1.3 = 1.7+3= 6X6+7= 35F ( ) =7
(
5.8+3.3 = 5.84-1.6 = 4.2-3.1 = 3+6.5 = 4.6—0.8 = 3.5+3.6= 4.3—3.5 = 6 + 0.3 = )+70=130
4.2+3.9 = 6.2-3.6 = 5.9—3.6 = 5.2-5= 4.64-3.8 = 2.9—0.85= 0.6—0.2 = 0.6+3.2 = 50X ( 400- (
) =200 ) =200
350+ ( ) =1000
) =700 ( ) ^5=30
) =700
300・()=100 ( ( ) H-6= 50
) +500=1000 0.6+0.46 = 81x99^
1.5-1.42 = 50X30 = 644-4= 7.7+8 = 9.9-9= 2.6+5 = 20x50 =
2000- ( ) =0 60. 10X10 =
70X3 = 61.8004-4 =
31X2 = 62. 5+4.3 =
15X4=
500+ ( 6X30 = 70—3 = 13X2 = 36 3 =
一
150X4= 60X40 = 20X4 = 84 4=
一
16X40 = 35X20 = 64-36 = 1404-7= 6.2+8= 49X10 =
6+5.3 = 9X80=
4+3.5 = 15X40=
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