Compare Difference Unknown

Connie has 13 marbles. Juan has 5 marbles. How many more marbles does Connie have than Juan?

Matching: 13 - 5 = ?


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Students will count out Connie's 13 marbles and will put them across their board. Then they will count out Juan's marbles and will match them to Connie's set of marbles. Students will count the marbles that do not have a match to discover how many more marbles Connie has than Juan.


Counting Up: 5 + ? = 13


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Students will count up from Juan's marbles to Connie's marbles. Students will put the number 5 in their brain and then will count up to 13. Students will then count how many jumps it took them to get to 13 to show how many more marbles Connie has than Juan.


Counting Down To: 13 - ? = 5


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Students will count down to Juan's amount. Students will start at Connie's amount of marbles (13) and will count down to Juan's marble amount (5). Students will then count how many jumps it took them to get from 13 down to 5. The result will be the difference between Connie's marbles and Juan's marbles.

Counting Down: 13 - 5 = ?


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Students will start at Connie's amount (13) and will count back Juan's (5) amount. The result will be the difference between Connie's and Juan's marble amounts.

Number Facts:


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