6404-80=

12X2X5=

27X3= 6404-16=

32X3=

27X3= 14X2=

964-24=

30X23=

120X600=

470+180=

20 X 420=

76004-200=

1300X50=

530+280= 180X500= 96004-30=

200X160= 18004-300=

3X1400二 370+580=

96004-80= 22X200 =

96004-800= 6X300 =

6404-80= 15X5=

160X30= 4804-80=

45004-50= 904-15=

270930 二 394-3=

32X6= 484-16=

1804-30= 564-14=

140X7= 40 + 20=

350X2= 12X8=

7200+900= 4500 X 20=

48X20= 200X360=

11X80= 4X2500=

40004-50= 10004-25= 7500 + 500= 23X3= 40X202=

8600-4200= 16X5= 404X3=

15X10= 484-4= 302X4=

220X40= 24 X 20= 405 X 5=

20X2= 5604-80= 40X46二

270X30= 40X30= 40X47二

664-7= 208 X 3= 720X8二

36094= 140X4= 909 X 9=

70004-70 = 406X9= 4 X 505=

2404-40= 140X6= 8X150=

13X6= 309X5= 9X110=

50X11= 240X6= 130X9二

410-201= 406X7= 208X8=

24X50= 403X8= 340 X 5=

530-70= 708X9= 75004-5=

7 X 700= 40X40= 7504-25=

1800 + 200 = 40X101= 55004-5=