please help dont want usless answers
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18. 826 × 25
826 × (20+5)
(826 × 20) + (826 × 5)
16,520 + 4,130
20,650
19.
(a) 15 = 3×5
20 = 2×2×5
common factor = 5
(b) 36 = 3×3×2×2
42 = 3×2×7
common factor = 3×2
= 6
hope it helps you
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