Two Digit Addition Techniques

What should you have in front of you before starting the addition practice?

• A textbook

• A calculator

• A ruler

• A pencil and paper

Tags

CCSS.6.NS.B.3

What does the term 'digits' refer to in mathematics?

• Specifically two-digit numbers

• Numbers making up a larger number

• Any numbers

• Symbols used in equations

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

When adding 42 and 35 using column addition, what is the sum of the ones column?

• 7

• 10

• 8

• 9

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the result of adding the tens column in the example 42 + 35 using column addition?

• 7

• 70

• 77

• 75

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the first step in the decomposing method of addition?

• Split the numbers into tens and ones

• Multiply the numbers

• Write the numbers side by side

• Add the numbers directly

Tags

CCSS.2.NBT.B.7

In the decomposing method, what do you add after decomposing the numbers 42 and 35?

• The hundreds place

• All at once

• The ones first

• The tens first

Tags

CCSS.2.NBT.B.7

What is the sum of the ones place when decomposing and adding 42 and 35?

• 10

• 7

• 5

• 9

Tags

CCSS.2.NBT.B.6

After decomposing, what is the sum of the tens place in the addition of 42 and 35?

• 80

• 77

• 75

• 70

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final result when adding 42 and 35 using the decomposing method?

• 79

• 77

• 75

• 72

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5