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Worksheet
Curated OER

Subtraction: Missing Numbers

For Students K - 2nd
In this subtraction practice activity, learners use the counting blocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Subtraction: Missing Numbers 4

For Students K - 2nd
In this subtraction practice worksheet, students use the counting blocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Subtraction: Missing Numbers 2

For Students K - 2nd
In this subtraction practice worksheet, students use the counting blocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Subtraction: Missing Numbers 3

For Students K - 2nd
In this subtraction practice worksheet, students use the counting bocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Subtraction: Missing Numbers 5

For Students K - 2nd
In this subtraction practice worksheet, learners use the counting blocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Subtraction: Missing Numbers 6

For Students K - 2nd
In this subtraction practice activity, students use the counting blocks to help them solve 8 problems that require them to fill in the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Missing Tens

For Students 1st - 2nd
Foster mental math skills with this activity; combine with 10-rods to modify. Twenty problems provide plenty of practice to master subracting by tens. Missing addends promote algebraic thinking. 
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Worksheet
Curated OER

Subtraction: Fill in the Blank

For Students 1st - 3rd
In this subtraction practice worksheets, students use their problems solving skills to solve 25 problems that require them to fill in the missing numbers in the subtraction problems.
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Lesson Plan
Curated OER

Football Math

For Teachers 6th - 8th
Develop an understanding of positive and negative numbers using football. Pupils create a football field and game pieces. The teacher gives plays and the pupils move pieces to see who wins the game.
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Lesson Plan
Curated OER

Ten Sly Piranhas: A Counting Story in Reverse

For Teachers 2nd - 3rd
Learners solve related addition and subtraction problems. In this addition and subtraction instructional activity, students use the book Ten Sly Piranhas by William Wise as the source of word problems for learners to solve.