Rounding Decimals
Comparing Decimals
Order of Operations
Adding & Subtracting Decimals
Prime & Composite Numbers
100

What is 3.67 rounded to the nearest whole number?

4

100

Which is greater: 0.5 or 0.45?

0.5

100

What is the result of 4.2 +3.15 −1.739?

5.611

100

What is 1.2+2.375?

3.575

100

Write in complete sentence, is the number 7 prime or composite and why?

Number 7 is a prime number because it only has factors of one and itself.

200

Round 5.82 to the nearest tenth.

5.8 or 5.80

200

Compare 0.75 and 0.755 using <, >, or =.

<

200

Calculate 1.5+ 25× 2

51.5

200

 Calculate 4.5−0.932

3.568

200

 List two prime numbers greater than 10 but less then 20.

11, 13, 17, 19

300

Round 2.345 to the nearest hundredth.

2.35 or 2.350

300

1.2< 1.24<_._ _ <1.3

1.25 or 1.26 or 1.27 or 1.28 or 1.29

300

Solve 5.3−(2.1+1.2)

2

300

What is the sum of 3.6 and 1.407?

5.007

300

 Is 80 a prime number? Write in complete sentence why or why not?

80 is composite number, 80 is even number and it can be divided by 2,5,and 10 because it ends in a zero.

400

What is 7.899 rounded to the nearest whole number?

8

400

Arrange the following decimals from least to greatest: 0.4, 0.34, 0.432, 0.333.

0.333, 0.34, 0.4, 0.432

400

What is 1.4+ 26 ÷2?

14.4

400

What is the difference between 5.55 and 2.222?

3.328

400

What is the first composite number

4 is the first composite number.

500

Round 4.678 to the nearest tenth and explain why.

4.68 or 4.680

500

Explain the steps how you can tell that 0.85 is greater than 0.8.

First you must stack the numbers by there decimal and place zeros as place holders. Then compare the numbers going left to right. You can't compare the 8s so you  more to the right and 5 is greater than 0.

500

Explain the steps to solve 35×2−1.4

First multiply 35 x 2=70 then subtract 1.4 from 70. The answer is 68.6

500

Explain how to add 3.75+4.025 step by step

First stack the numbers by their decimal then place zeros as place holders. Last add like normal. The answer is 7.775 

500

Explain the difference between a prime number and a composite number.

Prime only has factors of one and itself. Composite numbers have factors of one, itself, and more.

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