Step-by-step explanation:
1. (40×2) + (20×2) =
80 + 40 = 120
2. 100 + 3(100) =
100 + 300 = 400
3. Claire = more
laiza
(12×2) + (8×2)
24 + 16 = 40
claire
(15×2) + (6×2)
30 + 12 = 42
4. (6×2) + (3×2)
12 + 6 = 18
5. 600÷8 = 75 ÷ 3 = 25
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