Addition and Subtraction for 4th Graders: Master Whole Number Operations

Question 1

Which equation represents the subtraction of fifteen from forty-two?

Accepted Answer

42 - 15 = 27

Answer

42 + 15 = 27

Answer

15 - 42 = 27

Answer

27 = 42 + 15

Question 2

Find the difference between fifty-six thousand seven hundred eighty-nine and twenty-three thousand four hundred fifty-six.

Accepted Answer

Thirty-three thousand three hundred thirty-three

Answer

Twenty-three thousand three hundred thirty-three

Answer

Forty-three thousand three hundred thirty-three

Answer

Thirteen thousand three hundred thirty-three

Question 3

Solve without using paper and pencil: 34 minus 17.

Accepted Answer

21

Answer

17

Answer

27

Answer

31

Question 4

In the addition problem of 245 and 367, which digit in the answer will need to be regrouped?

Accepted Answer

Tens

Answer

Ones

Answer

Hundreds

Answer

Thousands

Question 5

Solve this word problem: A class has 25 students. 12 more students join the class. How many students are in the class now?

Accepted Answer

37

Answer

13

Answer

35

Answer

40

Question 6

Which option is NOT a valid strategy for estimating the sum of two numbers?

Accepted Answer

Adding all the digits together

Answer

Rounding to the nearest ten

Answer

Rounding to the nearest hundred

Answer

Using compatible numbers

Question 7

Which of the following numbers is NOT between 40,000 and 50,000?

Accepted Answer

52,109

Answer

43,215

Answer

46,543

Answer

49,876

Question 8

Subtract 29,345 from 56,789 and express your answer in expanded form.

Accepted Answer

27,444

Answer

26,444

Answer

28,444

Answer

29,444

Question 9

Which of the following is NOT a valid strategy for adding whole numbers?

Accepted Answer

Multiplying

Answer

Counting on

Answer

Using a hundreds chart

Answer

Estimating

Question 10

Subtract: 56,789 minus 12,345

Accepted Answer

34,434

Answer

44,434

Answer

44,334

Answer

34,334

Question 11

Which mental math strategy would be the most helpful for adding 123 and 456?

Accepted Answer

Breaking down numbers

Answer

Adding tens

Answer

Using compensation

Answer

Rounding

Question 12

What is the value of 12,345 + 45,678 - 23,456?

Accepted Answer

35,567

Answer

34,567

Answer

36,567

Answer

37,567

Question 13

Which of the following is NOT a strategy for adding two-digit numbers mentally?

Accepted Answer

Using a calculator

Answer

Using a number line

Answer

Counting by tens and ones

Answer

Regrouping

Question 14

Which of the following expressions represents the difference between 75,000 and 34,567?

Accepted Answer

75,000 - 34,567

Answer

75,000 + 34,567

Answer

34,567 - 75,000

Answer

75,000 + 34,567

Question 15

Which of the following number lines shows 25 subtracted from 50?

Accepted Answer

Start at 50, skip-count back by 5s to 25.

Answer

Start at 25, skip-count forward by 5s to 50.

Answer

Start at 50, skip-count back by 1s to 25.

Answer

Start at 25, skip-count forward by 1s to 50.

Question 16

Which of the following is a true statement about regrouping in subtraction?

Accepted Answer

You can regroup from both tens to ones and ones to tens.

Answer

You can only regroup from tens to ones.

Answer

You can only regroup from ones to tens.

Answer

You cannot regroup in subtraction.

Question 17

Which of the following equations shows the commutative property of addition?

Accepted Answer

5 + 7 = 7 + 5

Answer

5 - 7 = 7 - 5

Answer

5 x 7 = 7 x 5

Answer

5 ÷ 7 = 7 ÷ 5

Question 18

Which of these is NOT a factor of 12?

Accepted Answer

5

Answer

2

Answer

3

Answer

4

Question 19

Which of these is an example of regrouping in subtraction?

Accepted Answer

Taking one from the tens place to give to the ones place

Answer

Adding the numbers in the hundreds place first

Answer

Subtracting the numbers in the ones place first

Answer

Multiplying the numbers in the tens place

Question 20

Which of the following is a prime number?

Accepted Answer

17

Answer

12

Answer

24

Answer

30

Question 21

What is the area of a rectangle that is 10 cm long and 5 cm wide?

Accepted Answer

25 cm²

Answer

15 cm²

Answer

50 cm²

Answer

100 cm²

Question 22

A farmer has 12,345 sheep and 23,456 cows. How many animals does the farmer have in total?

Accepted Answer

35,801

Answer

25,791

Answer

45,911

Answer

56,001

Question 23

To find the result of 34,567 + 25,891, what steps should you take?

Accepted Answer

Line up the numbers vertically, add the digits in each column, and carry over when necessary.

Answer

Round both numbers to the nearest ten thousand and then add them.

Answer

Use a calculator to quickly get the answer.

Answer

Subtract the smaller number from the larger number to find the difference.

Question 24

When subtracting 12,345 from 56,789, it is important to:

Accepted Answer

Borrow from the next digit if needed to make sure there are enough to subtract.

Answer

Ignore any zeros in the numbers.

Answer

Round both numbers to the nearest thousand before subtracting.

Answer

Use mental math to quickly find the answer.

Question 25

To add 25 and 17 using a number line, you should:

Accepted Answer

Start at 25, count forward 17 spaces, and the landing spot is the sum.

Answer

Start at 17, count backward 25 spaces, and the landing spot is the sum.

Answer

Draw a number line from 0 to 42 and mark 25 and 17 on it.

Answer

Use a calculator to add the numbers.

Question 26

Which of these methods can be used to subtract 567 from 890?

Accepted Answer

Regrouping by subtracting 600 from 890 and 7 from 90.

Answer

Using a calculator to quickly find the answer.

Answer

Estimating the answer by rounding both numbers to the nearest hundred.

Answer

Adding 567 to 890 to find the sum.

Question 27

To solve 34,567 - (12,345 + 11,222), you should first:

Accepted Answer

Add 12,345 and 11,222, and then subtract the result from 34,567.

Answer

Subtract 12,345 from 34,567, and then add 11,222 to the difference.

Answer

Multiply 34,567 by 12,345 and then divide by 11,222.

Answer

Use a calculator to evaluate the expression.

Question 28

To find the sum of 25 and 75 using mental math, you can:

Accepted Answer

Add 20 and 70, and then add 5 and 5.

Answer

Multiply 25 by 3 and then add 25.

Answer

Use a calculator to quickly find the answer.

Answer

Estimate the answer by rounding both numbers to the nearest ten.

Question 29

The operation that undoes subtraction is called:

Accepted Answer

Addition

Answer

Multiplication

Answer

Division

Answer

Exponentiation

Question 30

In the following scenario, how many students are left in the room if 45 students are initially present and 12 students leave?

Accepted Answer

33

Answer

34

Answer

35

Answer

36

Question 31

Find the sum of 23,456 and 17,890.

Accepted Answer

41,346

Answer

23,456

Answer

31,346

Answer

50,346

Question 32

Which of the following is NOT a strategy for adding or subtracting whole numbers?

Accepted Answer

Using a ruler

Answer

Regrouping

Answer

Mental math

Answer

Using a number line

Question 33

A bakery sold 12,456 cookies on Monday and 9,873 cookies on Tuesday. How many cookies did they sell in total?

Accepted Answer

22,329

Answer

21,329

Answer

23,329

Answer

22,229

Question 34

There are 4,567 students at a school. If 2,345 students are girls, how many students are boys?

Accepted Answer

2,222

Answer

2,422

Answer

2,322

Answer

2,122

Question 35

What number do you get if you add 1,000 to 34,567?

Accepted Answer

35,567

Answer

34,667

Answer

36,567

Answer

35,467

Question 36

There are 2,345 books in the school library. The librarian bought 1,023 more books. How many books are there in the library now?

Accepted Answer

3,368

Answer

1,322

Answer

3,468

Answer

3,268

Question 37

What is 100 less than 7,654?

Accepted Answer

7,554

Answer

6,654

Answer

7,754

Question 38

What is the sum of 5,678, 2,345, and 1,002?

Accepted Answer

9,025

Answer

8,925

Answer

9,015

Answer

8,025

Question 39

Sarah has 12 stickers. Her friend gives her 7 more stickers. If Sarah then loses 5 stickers, how many stickers does she have left?

Accepted Answer

14

Answer

24

Answer

4

Answer

19

Question 40

What is 10,000 more than 23,456?

Accepted Answer

33,456

Answer

24,456

Answer

13,456

Answer

32,456

Question 41

A bakery sold 2,345 cookies on Monday and 1,876 cookies on Tuesday. How many cookies did they sell in total?

Accepted Answer

4,221

Answer

4,121

Answer

3,221

Question 42

A farmer harvested 5,678 apples and gave away 2,459. How many apples does the farmer have left?

Accepted Answer

3,219

Answer

3,229

Answer

2,219

Question 43

What is the missing number in the equation: 34,567 + ____ = 45,678?

Accepted Answer

11,111

Answer

10,111

Answer

12,111

Answer

21,111

Question 44

A school has 9,876 students. If 3,456 students are girls, how many students are boys?

Accepted Answer

6,420

Answer

6,320

Answer

7,420

Answer

5,420

Question 45

What is the sum of 12,345 and 34,567?

Accepted Answer

46,912

Answer

46,812

Answer

45,912

Answer

47,912

Question 46

What is the difference between 87,654 and 23,456?

Accepted Answer

64,198

Answer

64,298

Answer

63,198

Answer

65,198

Question 47

If you add 10,000 to 35,678, what is the result?

Accepted Answer

45,678

Answer

44,678

Answer

46,678

Question 48

Subtract 1,000 from 67,890. What is the answer?

Accepted Answer

66,890

Answer

65,890

Answer

67,790

Answer

68,890

Question 49

A store had 45,678 toys. They sold 12,345 toys. How many toys are left?

Accepted Answer

33,333

Answer

32,333

Answer

33,233

Answer

34,333

Question 50

A farmer has 15,000 chickens and buys another 8,500. How many chickens does the farmer have now?

Accepted Answer

23,500

Answer

23,000

Answer

22,500

Answer

24,500