Arithmetics: Fraction and Decimals

Arithmetics: Fraction and Decimals

by Cg Ashrikin

​STARTER QUIZ

​FACTOR, MULTIPLES, SQUARES, HCF & LCM

Multiple Select

Which of the following is a factor of 12? Select all that apply.

• 12

• 2

• 24

• 3

Multiple Select

Select all of the prime numbers.

• 3

• 9

• 29

• 2

Multiple Select

Select all of the square numbers.

• 9

• 16

• 24

• 100

Multiple Choice

During a performing arts festival, students from elementary and middle schools will be grouped together for various performances. There are 32 elementary students and 40 middle-school students. The arts director wants identical groups for the performances. What is the largest number of groups that can be formed?

• 640

• 32

• 16

• 8

Multiple Choice

A florist orders sunflowers every 6 days, and daisies every 4 days. How many days will pass until the next time she orders both kinds of flowers on the same day?

• 12 days

• 2 days

• 24 days

• 4 days

Multiple Choice

23 + (30 ÷ 10) x 4 =

• 35

• 32

• 12

• 45

Multiple Choice

Solve:
(32 ÷ 8) + 27 - 11

• 10
• 20
• 30

Multiple Choice

Which operation is performed FIRST?
(13 - 1) + 4

• addition
• subtraction
• multiplication

Multiple Choice

Which operation would you do first?
( 12 + 10) ÷ 10 · 14 - 6

• Division
• Multiplication
• Addition
• Subtraction

Multiple Choice

Which operation would you do first in the following equation?
10 - 4 ÷ 1 · 5

• Subtraction
• Division
• Multiplication
• Addition 

Multiple Choice

Evaluate the equation:
24 ÷ 6 + 4²

• 12
• 2
• 20

Multiple Choice

Evaluate the equation:
(15 ÷ 3)² + 9 ÷ 3

• 11.3
• 28
• 13

Multiple Choice

To add or subtract like fractions you

• add or subtract the numerators and the denominators

• cross cancel

• cross multiply

• add or subtract the numerators and keep the denominator the same

Multiple Choice

To multiply fractions you

• look to see if you can cross cancel then multiply straight across

• use cross products

• multiply the numerators and keep the denominators the same

• flip the second fraction then multipy

Multiple Choice

To divide fractions you

• change it to multiplication

• cross cancel

• flip the first fraction then multiply

• flip the second fraction then multiply

Multiple Choice

• 13/3
• 13/27
• 9/39
• 3/13

Multiple Choice

• 5/6
• 3/15
• 3/8
• 2/15

Multiple Choice

• 1/6
• 2/12
• 8/9
• 8/12

Multiple Choice

• 8  ¹/35
• 8  ¹²/35
• 9
• 8  ⁴/₁₅

Multiple Choice

3 5/8 + 2 3/4

• 5 11/8 = 6 3/8
• 5 8/12 = 5 2/3
• 5 8/8 = 6
• 5 3/8

Multiple Choice

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Multiple Choice

What is the sum of these fractions?

• 4/5
• 3/20
• 17/20
• 4/20

PROBLEM - SOLVING INVOLVING FRACTIONS

​PROBLEM-SOLVING INVOLVING FRACTION

Multiple Choice

Johnny is 13 years old. Ho old was he 4 ½ years ago? 

• 8
• 7 ½ 
• 8 ½ 
• -7

Multiple Choice

At the farmers' market, Trent bought 1/2 of a bag of Red Delicious apples and 5/12 of a bag of Gala apples. How many more bags of Red Delicious apples did Trent purchase?

• Addition
• Subtraction
• Multiplication
• Division

Multiple Choice

Sarah made two types of cookies. She used 2/3 cup of sugar for one recipe and 1/4 cup of sugar for the other. How much sugar did she use in all?

• 2/3
• 11/12
• 3/8
• 4/5

Multiple Choice

Write 42/4 as a mixed number in simplest form.

• 10  2/4
• 10  1/2
• 11  1/2
• 12  2/4

Multiple Choice

A recipe needs 3/4 cup of sugar. If the recipe is doubled, how much sugar is needed?

• 1
• 1 1/2
• 1  3/4 
• 2

Multiple Choice

Alisha kept track of the growth of a plant. At the beginning of one week, her plant was 1 7/8 inches tall. The next week, the plant was 2 3/4 inches tall. How many inches did Alisha’s plant grow over the week?

• 1/2

• 7/8

• 1 1/2

• 4 5/8

Multiple Choice

Solve:
Olivia set aside 5/6 of an hour for homework after school each day. How many hours of homework does she do in 5 days?

• 3 1/2 hours
• 4 1/2 hours
• 4 1/6 hours
• 50 minutes

Poll

HOW DO YOU THINK YOU DO WITH THE QUESTION?

• I AM CONFIDENT THAT I DID VERY WELL

• NOT ENOUGH TIME OR ELSE I WILL DO GREAT

• I NEED TO RECALL CERTAIN PART OF THE TOPICS

• I MADE LOTS OF MISTAKE

• I