+ 9 + 9 + 4 36 62 18 + 4 + 8 + 2 39 65 16 + 1 + 5 + 6 48 48 25 + 2 + 2 + 5 Add 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. Add within 100 - Composing a 10 92 91 96 + 8 + 9 + 4 86 83 89 + 4 + 7 + 1
+ 9 + 9 + 4 36 + 4 62 + 8 18 + 2 39 + 1 65 + 5 16 + 6 48 + 2 48 + 2 25 + 5 Add 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. Add within 100 - Composing a 10 92 + 8 91 + 9 96 + 4 86 + 4 83 + 7 89 + 1
add_within_100.docx