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12 May, 22:06

Tami is building a wooden deck. The deck needs 25 pieces of wood and each piece of wood needs 4 screws. If Tami already has 20 screws, how many more screws does she need to buy?

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Answers (2)
  1. 12 May, 22:36
    0
    80 more screws

    *Step-by-step explanation:

    First I figured out how many total screws would be needed (100)

    Next took away the 20 screws to see how many were missing (80)

    Finally i used the f=ending number to determine how many screws Tami needed to buy
  2. 12 May, 22:39
    0
    80 screws

    Step-by-step explanation:

    25 (4) - 20

    100-20

    80
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