Problem |
Solution |
1) Gemma is 12 years old. Gemma is five years older than Rebecca, and Jared is three times as old
as Rebecca. How much older than Gemma is Jared? |
1. If Gemma is 12 and is 5 years older than Rebecca, then Rebecca is 7 years old.
2. If Jared is 3 times as old as Rebecca, then he is 21.
3. Subtract Gemma's age from Jared's = 21 - 12 = 9 years.
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2) Carson collects pennies, nickels, and dimes in a jar. He pulls out a handful of coins at random
and counts them. If Carson pulls out 38 coins totaling $1.14 and he only has 1 nickel, how many of
the coins are pennies? |
1. Subtract the 5 cents from $1.14 = $1.09.
2. This is the sum of the pennies and dimes and now there are 37 coins left.
3. This is now a guess-and-check problem. Use this table: (make sure the number of pennies and dimes adds to 37 coins)
Guess # | # dimes | # pennies | Total $ |
1 | 8 | 29 | $1.09 |
There are 29 pennies.
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3) Reese is braiding several lengths of colored string together with a repeating pattern of green,
blue, green, red, and purple. What will the color of the 47th braid be?
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1. There are 5 colors in the repeating pattern.
2. Divide 47 by 5 and the remainder is 2.
3. This is the number of the 47th color in the pattern = blue.
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