Reading and Writing Decimals
Comparing and Rounding Decimals
Adding Decimals
Subtracting Decimals
Challenge Questions
100

Read the decimal 0.825 aloud.

Eight hundred twenty-five thousandths. 

100

hich is greater: 0.6 or 0.75?

0.75

100

What is the sum of 0.75 and 0.25?

1.0

100

9.82−4.63

5.19

100

The temperature in the morning was 15.37 degrees. By midday, the temperature increased by 8.52 degrees. What was the temperature by midday?

23.89 degrees


200

Write the decimal for three and thirty-seven hundredths.

3.37

200

Round 3.456 to the nearest tenth.

3.5

200

Calculate the total when you add 3.6 and 2.47.

6.07
200

What is the difference between 5.8 and 3.2?

2.6

200

Create an addition problem where the sum is 24.97.

Example: 13.24 + 11.73 = 24.97

300

Write Six and forty-five thousandths in standard form.

6.045

300

Determine whether 0.35 is greater than or less than 0.4.

Less than
300

Add 51.25, 0.48, and 2.90.

54.63

300

Calculate 120.54 minus 53.25.

67.29

300

Juan is shopping for snacks for his class. He spends $12.97 on Taki's, $3.29 on popcorn, $22.61 on soda, and $9.83 on ice cream. He gave the cashier a $50 bill. How much money does Juan get back from the cashier?

$1.30

400

Write four and fifty-eight thousandths in expanded form.

(4 x 1) + (5 x 1/100) + (8 x 1/1000)

400

Round 4.678 to the nearest whole number.

5

400

Brandon walks 2.94 miles to the store. Then, he walk 1.21 miles to his grandma's house. How far did he walk in total?

4.15 miles

400

A bakery had 45.72 pounds of flour. After using 18.36 pounds for baking, how many pounds of flour does the bakery have left?

27.36 pounds of flour

400

Alex bikes 1.73 miles from home to the store. After shopping, he bikes .98 miles back home before his bike tire goes flat. How far away from home is Alex?

0.75 miles

500

Write 214.975 in expanded and word form then read it aloud.

Two hundred fourteen and nine hundred seventy-five thousandths.


(2 x 100) + (1 x 10) + (4 x 1) + (9 x 1/10) +        (7 x 1/100) + (5 x 1/1000)

500

Put these numbers in descending order: 2.546, 2.654, 2.6, 2.7, 2.572

2.7, 2.654, 2.6, 2.572, 2.546

500

Emma saved $125.60 last month and $87.95 this month. How much money did she save in total over the two months?

$213.55

500

A tank contained 315.67 gallons of water. After using 98.42 gallons for watering the garden, how many gallons of water are left in the tank?

217.25 gallons left in the tank

500

Shannon added the following decimals: 39.24, 12.3, 7.58 and got 48.12. Is she correct or incorrect? If she is incorrect, what did she do wrong?

Shannon is incorrect. 

She didn't regroup the 11 tenths as 1 tenth and 10 ones. She also didn't regroup the 18 ones as 8 ones and 10 tens.