G45.M1.S4.Q2

Decompose the number 85 into tens and ones.

• 8 tens and 4 ones ( 80 + 4 = 84)

• 8 tens and 5 ones ( 80 + 5 = 85)

• 8 tens and 6 ones ( 80 + 6 = 86)

• 8 tens and 7 ones ( 80 + 7 = 87)

Decompose the number 126 into hundreds, tens, and ones.

(a)  

• 1 hundred, 2 tens, and 6 ones ( 100 + 20 + 6 = 126)
• 2 hundred, 2 tens, and 6 ones ( 200 + 20 + 6 = 226)
• 1 hundred, 3 tens, and 6 ones ( 100 + 30 + 6 = 136)
• 1 hundred, 2 tens, and 7 ones ( 100 + 20 + 7 = 127)

Which number can be decomposed into 40+5?

 What is the value of the digit 4 in the number 948?

(a)  

• 40
• 4
• 400
• 4000

What is decomposition?

• A process of breaking a number into smaller parts.

• A process of finding the remainder of a division problem.

• A process of combining two numbers to make a bigger number.

What is the purpose of decomposition in math?

(a)  

• To simplify complex problems.
• To make problems more difficult.
• To find the quotient of a division problem.

What is the decomposition of the number 46?

• 40 + 22

• 40 + 20

• 20 + 26

• 20 + 28