Unit 5 Math Test Review

Which number sentence is not true?

• 67,321 < 76,231

• 83,210 > 38,120

• 56,789 > 65,789

• 12,345 < 21,345

Answer explanation

The statement 56,789 > 65,789 is false because 56,789 is less than 65,789. All other statements are true.

Tags

CCSS.4.NBT.A.2

Compare each number to 500. Write each number in the column of the table that best describes it. Numbers: 245, 678, 499, 501, 800, 320

• Less Than 500: 245, 499, 320; Greater Than 500: 678, 501, 800

• Less Than 500: 245, 678, 320; Greater Than 500: 499, 501, 800

• Less Than 500: 245, 499, 501; Greater Than 500: 678, 800, 320

• Less Than 500: 245, 499, 800; Greater Than 500: 678, 501, 320

Answer explanation

The correct choice categorizes the numbers accurately: 245, 499, and 320 are less than 500, while 678, 501, and 800 are greater than 500.

Tags

CCSS.2.NBT.A.4

Solve the following problems using the U.S. standard algorithm. 7,432 + 8,659 = __________

• 16,091

• 15,091

• 16,081

• 15,081

Answer explanation

To solve 7,432 + 8,659, align the numbers by place value and add each column starting from the right: 2+9=11 (write 1, carry 1), 3+5+1=9, 4+6=10 (write 0, carry 1), 7+8+1=16. The sum is 16,091.

Tags

CCSS.4.NBT.B.4

Solve the following problems using the U.S. standard algorithm. 972 - 395 = __________

• 577

• 587

• 567

• 597

Answer explanation

To solve 972 - 395, align the numbers and subtract: 2 - 5 (borrow), 6 - 9 (borrow), 9 - 3. The result is 577, which is the correct answer.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Solve the following problems using the U.S. standard algorithm. 47,236 - 19,487 = __________

• 27,749

• 28,759

• 26,749

• 27,859

Answer explanation

To solve 47,236 - 19,487, align the numbers and subtract each column starting from the right. The result is 27,749, which matches the correct answer choice.

Tags

CCSS.4.NBT.B.4

Solve the following problems using the U.S. standard algorithm. 76,001 + 132,020 = __________

• 208,021

• 206,021

• 209,021

• 210,021

Answer explanation

To solve 76,001 + 132,020, align the numbers and add each column starting from the right. The sum is 208,021, making it the correct answer.

Tags

CCSS.4.NBT.B.4

Round the following numbers to the place of the underlined digit. Write the rounded number on the lines provided. 387,452 → __________

• 380,000

• 387,000

• 390,000

• 400,000

Answer explanation

To round 387,452 to the nearest thousand, look at the hundreds digit (4). Since 4 is less than 5, we round down, resulting in 387,000. However, rounding to the nearest ten thousand (8) gives us 390,000, which is correct.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round the following numbers to the place of the underlined digit. Write the rounded number on the lines provided. 43,286 → __________

• 43,300

• 43,200

• 43,000

• 43,286

Answer explanation

To round 43,286 to the nearest hundred, look at the digit in the tens place (8). Since 8 is 5 or greater, round up the hundreds place (2) to 3. Thus, 43,286 rounds to 43,300.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Write the number 34,687 in word form: ________________________________

• thirty-four thousand, six hundred eighty-seven

• thirty-three thousand, six hundred eighty-seven

• thirty-four thousand, seven hundred eighty-six

• thirty-four thousand, six hundred seventy-eight

Answer explanation

The number 34,687 is broken down as thirty-four thousand (34,000), six hundred (600), and eighty-seven (87). Therefore, the correct word form is 'thirty-four thousand, six hundred eighty-seven'.

Tags

CCSS.4.NBT.A.2

Write the number 34,687 in expanded form: ________________________________

• 30,000 + 4,000 + 600 + 80 + 7

• 3,000 + 40,000 + 600 + 80 + 7

• 30,000 + 4,000 + 60 + 800 + 7

• 30,000 + 4,000 + 600 + 8 + 70

Answer explanation

The number 34,687 can be broken down into its place values: 30,000 (thousands), 4,000 (thousands), 600 (hundreds), 80 (tens), and 7 (ones). Thus, the correct expanded form is 30,000 + 4,000 + 600 + 80 + 7.

Tags

CCSS.4.NBT.A.2