1/3/21 Adding double digits with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers that are more than 10 and carry over to the next place value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What does it mean to add double digits?

Back

Adding double digits means to add two numbers that each have two digits, like 23 + 45.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 27 and 35?

Back

The sum of 27 and 35 is 62.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add 48 and 27 using regrouping?

Back

1. Add the ones: 8 + 7 = 15. Write down 5 and carry over 1. 2. Add the tens: 4 + 2 + 1 (carried) = 7. So, 48 + 27 = 75.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is a place value?

Back

Place value is the value of where a digit is in a number, like ones, tens, hundreds.

Tags

CCSS.4.NBT.A.1

Front

What is the first step in adding double digits?

Back

The first step is to line up the numbers by their place values.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do you do if the sum of the ones is more than 10?

Back

If the sum of the ones is more than 10, you regroup by carrying over to the next place value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 56 + 29?

Back

56 + 29 = 85.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the process of carrying over?

Back

Carrying over is when you move a value from one place value to the next when the sum exceeds 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 34 and 19?

Back

34 + 19 = 53.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5