Fluently Adding and Subtracting Within 100

Front

What are base ten blocks used for?

Back

Base ten blocks are used to help understand addition and subtraction problems within 100 by representing numbers with tens and ones.

Front

What is the total of 88 and 7?

Back

95: 9 tens and 5 little cubes.

Front

What is this manipulative called? (Show an image of base ten blocks)

Back

Base ten blocks.

Front

What place value does the number 8 represent in 28?

Back

The number 8 represents the 'ones' place.

Front

How do you represent 100 - 60 using base ten blocks?

Back

4 tens.

Front

What is the value of the digit 2 in the number 28?

Back

The value of the digit 2 is 20, which is in the tens place.

Front

If you have 3 tens and 5 ones, what number do you have?

Back

35.

Front

What is the sum of 45 and 32?

Back

77.

Front

What is the difference between 90 and 45?

Back

45.

Front

How many tens are in the number 70?

Back

7 tens.