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50% of 640 + 640 ÷ 10 = ?
352
384
409
3,200
Find the missing number: 75 + ? × 5 = 415
98
69
8
68
Simplify: 3/4 + 1/4
1/2
3/16
1
Simplify: 40 + 9 × 6 − 70 ÷ 7
284
84
24
32
10% of 600 + 600 ÷ 4 = ?
200
75
210
240