Q: Archie needs to lay sod in his backyard that measures 20 yards by 13 yards. He has a shed on it that measures 3 yards by 5 yards. How many square yards of sod will Archie need for his backyard?
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A: 20 * 13 = <<20*13=260>>260 square yards
3 * 5 = <<3*5=15>>15 square yards
260 - 15 = <<260-15=245>>245 square yards
Archie needs 245 square yards of sod. The answer is  245.
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