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100

what is half of 284

142

100

what's quarter of 100

25

100

what's 38/10 + 42/10



80/10

100

what's 72/80 - 45/80

27/80

100

what's 5/6 x 2/3 

10/18

200

what is half of 448

224

200

what's quarter of 90

22.5

200

what's 10/40 + 15/40

25/40

200
what's 35/20 - 12/20

23/20

200

what's 5/2 x 10/6

12/30

300

what is half of 432

216

300

what's quarter of 250

62.5

300

what's 25/80 + 48/80

73/80

300

what's 45/60 - 32/60

13/60

300

what's 17/15 x 4/4

68/135

400

what is half of 700.90

350.45

400

what's quarter of 550 

137.5

400

what's 90/70 + 46/70

136/70

400

what's 79/40 - 49/40

30/40

400

what's 20/50 x 3/2

 60/100

500

what is half of 550.32

295.16

500

what's quarter of 975

243.75

500

what's 479/100 + 585/100

1,064/100

500

what's 452/20 - 73/20

879/20

500

what's 3/7 x 4/8

12/56