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Add Multiple of Tens to 2 Digit Number- Grade 1 Math
Add Tens to a 2 Digit Number Worksheet help kids practice adding a 2 digit number and a multiple of 10. Understand that adding a multiple of 10 is the same as increasing the number of 10's in a 2 digit number. Start with addition using pictorial representation of numbers (base-10 blocks). Students then move on to addition using place value understanding, i.e. by adding tens.
Common Core Alignment
1.NBT.4Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.