Unit 1 Review

compare & estimates

100

Samantha has $62.75 in her wallet. She spends $8.49 on a book and $19.87 on a new shirt.

Part A:
Which is the best estimate for the amount of money Samantha has left?

$35.00

200

Select the two decimals that are equivalent to the given expression:

(4×100)+(7×10)+(6×1)+(8× 1/10 )+(2× 1/100 )=

• 476.82
• 4768.2
• 476.082
• 476.82
• 47.682
• 476.802

• 476.82
• 476.820

300

• Select 3 statements that are true
• 45.25 + 6.01 > 45.2 + 6.1
• 150.5 + 30.02 < 150.02 + 30.5
• 18 + 5.8 = 20 + 3.800
• 200.03 + 7.004 > 199 + 8.03
• 60.1 + 15.9 < 59.5 + 16.6

• 45.25 + 6.01 > 45.2 + 6.1
• 200.03 + 7.004 > 199 + 8.03
• 60.1 + 15.9 < 59.5 + 16.6

400

• Select 3 statements that are true
• 56.5 + 43.2 > 55.9 + 43.7
• 92.1 - 38.4 < 91.5 - 37.8
• 105.7 + 45.3 > 104.9 + 46.0
• 67.3 - 22.1 < 68.2 - 23.0
• 49.8 + 29.7 = 50.0 + 29.5

• 56.5 + 43.2 > 55.9 + 43.7
• 67.3 - 22.1 < 68.2 - 23.0
• 49.8 + 29.7 = 50.0 + 29.5

500

A chef buys 47.6 pounds of flour and 23.9 pounds of sugar. Estimate the total weight of the flour and sugar by rounding each number to the nearest whole number.

48 and 24

place value

100

In the number 53,847, which digit is in the thousands place, and what is its value?

3

200

What is the value of the digit 6 in the number 4,682?

600 (hundreds place)

300

Which of the following will be true when 10² is used?

1. 63×___=6,300
2. 95×___=9,500
3. ___×84=840
4. 42×___=420

63×10²=6,300

400

Find the product for each expression.
63.5 × 10² =  
635 × 1,000 =

6,350 & 635,000

500

Which statement is equivalent to multiplying a number by 10⁴? 

• A. Moving the decimal point 3 places to the right
• B. Adding 4 to the number
• C. Moving the decimal point 4 places to the right
• D. Dividing the number by 10

• C. Moving the decimal point 4 places to the right

Place Value, add and subtract

100

Lisa bought a toy for $15.99 and returned it, receiving a refund of $15.99. Later, she bought a different toy for $12.49. How much money has she spent in total after the refund?

$12.49

200

Tom had $20.00. He spent $6.85 on lunch and $4.30 on a book. How much money does he have left?

$8.85

300

Sarah buys a notebook for $3.75 and a pack of pens for $4.45. How much does she spend in total?

$8.20

400

Ms. Taylor bought the musical instruments listed below. She paid $250 upfront and will make monthly payments of $55 for the remaining amount. How long will it take her to pay for the instruments?

• 2 keyboards = $400
• 3 guitars = $270
• 1 drum set = $350

14 months

500

Select the two numbers that round to 512.8 when rounded to the nearest tenth.

• 512.749
• 512.839
• 512.785
• 512.841
• 512.796

• 512.749
• 512.785

multiplying decimals

100

Amira lives 5.6 miles from her dance studio. Sam lives 0.8 times this distance from the dance studio. How far from the dance studio does Sam live?

4.48 miles

200

Emily bought 3.75 pounds of apples, and each pound costs $1.25. How much did she spend on apples?

$4.69

300

A bottle contains 2.5 liters of water. If Oliver drinks 0.4 times this amount, how many liters did he drink?

1.0

400

Sarah runs 1.8 miles each day. Over 6.5 days, how many miles does she run in total?

11.7 miles

500

A recipe calls for 0.75 cups of sugar. If Jake makes 4.2 times the recipe, how many cups of sugar will he need?

3.15 cups

multiplying

100

A school principal buys 48 desks for the new classrooms. Each desk costs $150. What is the total amount the principal pays for desks?

$7,200

200

A construction company orders 75 bags of cement. Each bag costs $42. What is the total amount the company pays for the cement?

$3150

300

A teacher buys 60 notebooks for her students. Each notebook costs $3.50. What is the total amount the teacher pays for the notebooks?

$210

400

A landscaper purchases 120 bags of soil. Each bag costs $12. What is the total amount the landscaper spends on soil?

$1440

500

A caterer buys 200 plates for an event. Each plate costs $1.75. What is the total amount the caterer pays for the plates?

$350