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Previous Standard
Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

Next Standard
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

Worksheets

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Each worksheet has 20 problems adding (within 100) a 2 digit number and a multiple of ten.

Each worksheet has 20 problems adding (within 100) a 2 digit number and a multiple of ten.

Each worksheet has 20 problems finding the sum of numbers within 100.

Each worksheet has 20 problems finding the sum of numbers within 100.

Use addition or subtraction to solve the problem.

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