National Council of Teachers of Mathematics

Hopping Backward on the Number Line

Inform the students that they will find differences using the number line model. Make a number line on the floor with numbered carpet squares or by drawing on a shower curtain. Display a subtraction ...
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Integers on number line. Whole negative and positive numbers, zero. Math chart for addition and subtraction operations in school isolated on white background. Vector graphic ...

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Add and subtract positive and negative numbers

To add and subtract numbers always begin counting from zero. When adding positive numbers, count to the right. When subtracting positive numbers, count to the left. Calculate 4 - 5 - 3. Imagine moving ...
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Positive And negative Number line. Integers on number line. Whole negative and positive numbers, zero. Math chart for addition and subtraction operations in school isolated on ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...
BBC

Subtraction with up to 4-digit numbers

Subtracting larger numbers in your head is not always easy, so you can use the column method to take one number away from another. You write the larger number above the smaller number, so that the ...