This handy Spectrum Math Grade 4 Answer Key Chapter 2 Pretest provides detailed answers for the workbook questions.

Check What You Know

Numeration through 1,000,000

Write each number in expanded form.

Question 1.
a. 3,245
____________
Given that the number is 3,245.
The expended form of the number is based on the place value of the number.
The expended form of 3,245 is 3,000 + 200 + 40 + 5.

b. 973
____________
Given that the number is 973.
The expended form of the number is based on the place value of the number.
The expended form of 973 is 900 + 70 + 3.

c. 51
____________
Given that the number is 51.
The expended form of the number is based on the place value of the number.
The expended form of 51 is 50 + 1.

Question 2.
a. 6,675
____________
Given that the number is 6,675.
The expended form of the number is based on the place value of the number.
The expended form of 6,675 is 6000 + 600 + 70 + 5.

b. 845,450
____________
Given that the number is 845,450.
The expended form of the number is based on the place value of the number.
The expended form of 845,450 is 800,000 + 40,000 + 5,000 + 400 + 50.

c. 790
____________
Given that the number is 790.
The expended form of the number is based on the place value of the number.
The expended form of 790 is 700 + 90.

Write the number word.

Question 3.
a. 945
____________
Given that the number is 945.
The word form of 945 is nine hundred and forty five.

b. 4,332
____________
Given that the number is 4,332.
The word form of 4,332 is four thousand three hundred thirty two.

Question 4.
a. 52,321
____________
Given that the number is 52,321.
The word form of 52,321 is fifty two thousand three hundred and twenty one.

b. 528,455
____________
Given that the number is 528,455.
The word form of 528,455 is five lakhs twenty eight thousand four hundred and fifty five.

Question 5.
a. 495,362
____________
Given that the number is 495,362.
The word form of 495,362 is four lakhs ninety five thousand three hundred sixty two.

b. 9,365,732
____________
Given that the number is 9,365,732.
The word form of 9,365,732 is nine million three hundred sixty sixty five thousand seven hundred and thirty two.

Compare each pair of numbers. Write >, <, or =.

Question 6.
a. 4,312 ____ 4,213
Here thousands place is same in both numbers. Then look at the hundreds place.
The hundreds place of 4,312 is greater than the hundreds place value of 4,213.
So, 4,312 > 4,213.
Therefore 4,312 greater than 4,213.

b. 95 ____ 58
Tens place of 95 is greater than the tens place of 58.
So, 95 > 58.
Therefore 95 greater than 58.

c. 408 ___ 480
Hundreds place of both the numbers same. Then look at the tens place.
Tens place of 408 is less than the tens place of 480.
So, 408 < 480.
Therefore 408 less than 480.

Question 7.
a. 52,650 ____ 52,560
Here the ten thousands and thousands place are same in both numbers. Then look at the hundreds place.
The hundreds place of 52,650 is greater than the hundreds place of 52,560.
So, 52,650 > 52,560.
Therefore 52,650 greater than 52,560.

b. 610 ___ 672
Here hundreds place of both the numbers are same. Then look at the tens place.
Tens place of 610 is less than the ten place ofÂ  672.
So, 610 < 672.
Therefore 610 less than 672.

c. 72 ____ 62
Ten place of 72 is greater than the tens place of 62.
So, 72 > 62.
Therefore 72 greater than 62.

Question 8.
a. 52,173 ____ 520,173
The number of digits in 52,173 is 5.
The number of digit in 520,173 is 6.
So, 52,173 < 520,173.
Therefore 52,173 less than 520,173

b. 4,675,321 ____ 4,751,670
Here lakhs place place of 4,675,321 is less than the lakhs place of 4,751,670.
So, 4,675,321 < 4,751,670.
Therefore 4,675,321 less than 4,751,670

c. 25 ___ 52
Tens place of 25 is less than the tens place of 52.
So, 25 < 52.
Therefore 25 less than 52.

Question 9.
a. 158,325 ___ 158,325
Both the numbers are equal.
So, 158,325 = 158,325.
Therefore 158,325 equal to 158,325

b. 652 ____ 256
Here hundreds place of 652 is greater than the hundreds place of 256.
So, 652 > 256.
Therefore 652 greater than 256.

c. 8,910,003 ___ 8,910,003
Both the numbers are same.
So, 8,910,003 > 8,910,003.
Therefore 8,910,003 greater than 8,910,003.

Round each number to the place named.

Question 7.
a. 7,649
thousands
____________
Given that the number is 7,649.
Thousands place value of 7,649 is 7,000.

b. 932
hundreds
____________
Given that the number is 932.
Hundreds place value of 932 is 900.

c. 553,972
hundred thousands
____________
Given that the number is 553,972.
Hundred thousands place value of 553,972 is 500,000.

Question 11.
a. 9,732,005
millions
____________
Given that the number is 9,732,005.
Million place value of 9,732,005 is 9,000,000.

b. 75
tens
____________
Given that the number is 75.
Tens place value of 75 is 70.

c. 1,675
hundreds
____________
Given that the number is 1,675.
Hundreds place value of 1,675 is 600.

Question 12.
a. 82,397
ten thousands
____________
Given that the number is 82,397.
Ten thousand place value of 82,397 is 80,000.

b. 928
tens
____________
Given that the number is 928.
Tens place value of 928 is 20.

c. 682,349
thousands
____________
Given that the number is 682,349.
Thousand place value of 682,349 is 680,000.

Write the value of the 9 in each number.

Question 13.
a. 95,235
__________
Given that the number is 95,235.
The place value of 9 in 95,235 is 90,000.

b. 479
__________
Given that the number is 479.
The place value of 9 in 479 is 400.

c. 1,976,235
__________
Given that the number is 1,976,235.
The place value of 9 in 1,976,235 is 900,000.

d. 5,392
__________
Given that the number is 5,392.
The place value of 9 in 5,392 is 90.

Question 14.
a. 9,003,452
__________
Given that the number is 9,003,452.
The place value of 9 in 9,003,452 is 9,000,000.

b. 2,349,003
__________
Given that the number is 2,349,003.
The place value of 9 in 2,349,003 is 9,000.

c. 5,009,321
__________
Given that the number is 5,009,321.
The place value of 9 in 5,009,321 is 9,000.

d. 8,793,215
__________
Given that the number is 8,793,215.
The place value of 9 in 8,793,215 is 90,000.

Question 15.
a. 6,000,942
__________
Given that the number is 6,000,942.
The place value of 9 in 6,000,942 is 900.

b. 3,209
__________
Given that the number is 3,209.
The place value of 9 in 3,209 is 9.

c. 794,367
__________