Leah has sold magazine subscriptions worth $330 for a school fundraiser. If she reaches a total of $500, she wins a gift certifi
cate. How many more subscriptions does she need to sell to reach $500?
1 answer:
You can solve by subtracting: 500-330
but I like to use mental math and think this way:
she has 330
70 more will give her 400
and 100 more will give her 500
100 + 70 is 170.
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5u-15=10 |+15
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I hope it helps
have anice day
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