Use models and/or mental math to add 10, or multiples of 10, to any 2-digit number. This page has printable worksheets, task cards, and flashcards.
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Using mental math, add 10 to each 2-digit number. This worksheet has 8 horizontal problems and 2 word problems.
THese task cards have place value blocks and partial hundreds charts. Use the models or mental math to solve. 30 cards in all. Great for learning centers, classroom scavenger hunts, exit slips, or peer practice sessions.
Use mental math to add 10 more to each 2-digit number. This page has 26 vertical and horizontal problems.
Use the partial hundreds chart to practice adding 2-digit numbers to multiples of 10.
(Example: 34+20=54)
