2.NBT.5-2-Digit Addition with Regrouping with Base-10 Blocks

Front

What is regrouping in addition?

Back

Regrouping is when you rearrange groups of ten to make adding easier, especially when the sum of a column is 10 or more.

Front

What do base ten blocks represent?

Back

Base ten blocks are tools that represent numbers using units (ones), rods (tens), and flats (hundreds) to help visualize addition and subtraction.

Front

How do you add 2-digit numbers using base ten blocks?

Back

You can use base ten blocks to represent each number, combine the blocks, and regroup if necessary to find the total.

Front

What is the sum of 35 and 29?

Back

64

Front

What is the sum of 46 and 37?

Back

83

Front

What is the sum of 24 and 18?

Back

42

Front

What is the sum of 63 and 29?

Back

92

Front

If you have 6 + 26, what is the answer?

Back

32

Front

What does it mean to carry over in addition?

Back

Carrying over means moving a value from one column to the next when the sum exceeds 9.

Front

What is a tens place in a 2-digit number?

Back

The tens place is the second digit from the right in a 2-digit number, representing how many groups of ten are in the number.