Two-Digit Addition

Front

What is two-digit addition?

Back

Adding numbers that are both between 10 and 99.

Front

What are tens and ones?

Back

Tens are the second digit in a two-digit number, and ones are the first digit.

Front

How do you add two-digit numbers?

Back

You can add the tens first and then the ones.

Front

What is the sum of 26 + 14?

Back

40

Front

How many tens and ones are in 26 + 14?

Back

4 tens 0 ones.

Front

What is the sum of 42 + 18?

Back

60

Front

What is the sum of 48 + 35?

Back

83

Front

What addition problem is represented by the base-ten blocks for 33 + 54?

Back

33 + 54 = 87.

Front

What is the sum of 67 + 23?

Back

90.

Front

What is a strategy to solve addition problems?

Back

You can use counting on, making ten, or drawing pictures.