3rd Grade Math : Equations

Study concepts, example questions & explanations for 3rd Grade Math

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Example Questions

Example Question #1 : Equations

In Spot’s toy basket he has \(\displaystyle 4\) balls. There are \(\displaystyle 3\) more stuffed animals than balls and there is double the number of ropes than balls. How many toys does Spot have in his basket? 

Possible Answers:

\(\displaystyle 19\)

\(\displaystyle 8\)

\(\displaystyle 7\)

\(\displaystyle 21\)

Correct answer:

\(\displaystyle 19\)

Explanation:

To solve this problem, we first have to find our unknowns. Our unknowns are the number of ropes and stuffed animals that Spot has. We can set up equations for these unknowns by letting \(\displaystyle R\) represent ropes and \(\displaystyle S\) represent stuffed animals. 

\(\displaystyle S=4+3\) because he has \(\displaystyle 3\) more stuffed animals than his \(\displaystyle 4\) balls. 

\(\displaystyle S=7\)

\(\displaystyle R=2\times4\) because double means \(\displaystyle 2\) times more. 

\(\displaystyle R=8\)

Now we need to add up our number of balls, stuffed animals and ropes to find our total. 

\(\displaystyle 4+7+8=19\)

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