Double Digit Addition with Base Ten Blocks

What addition problem do these base ten blocks represent?

• 35+29

• 28+39

• 29+38

• 38+29

6+26

• 12

• 22

• 32

Solve the following using base-ten blocks: 23+12+17=

• 52

• 51

• 53

• 54

Using base ten blocks, how would I represent this math problem: 20+35=

• 5 tens and 5 little cubes

• 4 tens and 5 little cubes

• 4 tens and 15 little cubes

• 77

• 67

• 87

Solve.

• 54

• 64

• 40

Count the base ten blocks.

What is the sum?

• 112

• 121

• 100

• 62

Count the base ten blocks.

What is the sum?

• 132

• 105

• 60

• 150

Count the base ten blocks.

What is the sum?

• 98

• 89

• 109

• 32

How many?