# Spectrum Math Grade 4 Chapter 2 Lesson 1 Answer Key Adding Understanding Place Value (to hundreds)

This handy Spectrum Math Grade 4 Answer Key Chapter 2 Lesson 2.1 Adding Understanding Place Value (to hundreds) provides detailed answers for the workbook questions.

## Spectrum Math Grade 4 Chapter 2 Lesson 2.1 Adding Understanding Place Value (to hundreds) Answers Key

Write each number in expanded form.

Question 1.
a. 54
50 + 4

b. 608
__________
The expended form of the number is based on the place value of the number.
The expended form of 608 is 600 + 8.
Here 608 is splits into 6 hundreds and 8 ones.

c. 32
__________
The expended form of the number is based on the place value of the number.
The expended form of 30 + 2
Here 32 is splits into 3 tens and 2 ones.

d. 421
__________
The expended form of the number is based on the place value of the number.
The expended form of 421 is 400 + 20 + 1.
Here 421 is splits into 4 hundreds 2 tens and 1 ones.

Question 2.
a. 430
__________
The expended form of the number is based on the place value of the number.
The expended form of 430 is 400 + 30.
Here 430 is splits into 4 hundreds 3 tens.

b. 549
__________
The expended form of the number is based on the place value of the number.
The expended form of 549 is 500 + 40 + 9.
Here 549 is splits into 5 hundreds 4 tens and 9 ones.

c. 75
__________
The expended form of the number is based on the place value of the number.
The expended form of 75 is 70 + 5.
Here 75 is splits into 7 tens and 5 ones.

d. 699
__________
The expended form of the number is based on the place value of the number.
The expended form of 699 is 600 + 90 + 9.
Here 699 is splits into 6 hundreds 9 tens and 9 ones.

Question 3.
a. one hundred thirty-two
____________
One hundred thirty-two in numeric form is 132
The expended form of the number is based on the place value of the number.
The expended form of 132 is 100 + 30 + 2.
Here 132 is splits into 1 hundreds 3 tens and 2 ones.

b. seven hundred twenty-one
____________
Seven hundred twenty-one in numeric form is 721
The expended form of the number is based on the place value of the number.
The expended form of 721 is 700 + 20 + 1.
Here 721 is splits into 7 hundreds 2 tens and 1 ones.

c. thirty-nine
____________
Thirty-nine in numeric form is 39.
The expended form of the number is based on the place value of the number.
The expended form of 39 is 30 + 9.
Here 39 is splits into 3 tens and 9 ones.

d. eighty-seven
____________
Eighty-seven in numeric form is 87.
The expended form of the number is based on the place value of the number.
The expended form of 87 is 80 + 7.
Here 80 is splits into 8 tens and 7 ones.

Question 4.
a. nine hundred eleven
____________
Nine hundred eleven in numeric form is 911.
The expended form of the number is based on the place value of the number.
The expended form of 911 is 900 + 10 + 1.
Here 911 is splits into 9 hundreds, 1 tens and 1 ones.

b. five hundred thirteen
____________
Five hundred thirteen is numeric form is 513.
The expended form of the number is based on the place value of the number.
The expended form of 513 is 500 + 10 + 3.
Here 513 is splits into 5 hundreds, 1 tens and 3 ones.

c. one hundred ninety
____________
One hundred ninety in numeric form is 190.
The expended form of the number is based on the place value of the number.
The expended form of 190 is 100 + 90.
Here 190 is splits into 1 hundred and 9 tens.

d. seventy
____________
Seventy in numeric form is 70
The expended form of the number is based on the place value of the number.
The expended form of 70 is 70.
Here 70 is splits into 7 tens.

Write the numerical value of the digit in the place named.

Question 5.
a. 872
tens
70

b. 934
hundreds
__________
Given that the number is 934.
The numeric value of hundreds place of 934 is 900.

c.
326
ones
__________
Given that the number is 326.
The numeric value of ones place of 326 is 6.

d. 304
ones
__________
Given that the number is 304.
The numeric value of ones place of 304 is 4.

Question 6.
a. 799
hundreds
__________
Given that the number is 799.
The numeric value of hundreds place of 799 is 700.

b. 663
tens
__________
Given that the number is 663.
The numeric value of tens place of 663 is 60.

c. 309
tens
__________
Given that the number is 309.
The numeric value of tens place of 309 is 0..

d. 995
hundreds
__________
Given that the number is 995.
The numeric value of hundreds place of 995 is 900.

Write the number word.

Question 7.
85,034
___________