Addition
Add the following decimals:
101.9 + 100.3
101.9 + 100.3 = 202.2
TRUE OR FALSE: When subtracting decimals, the decimal points don't need to line up
FALSE: They do! This helps make sure you have each digit in the right place value column
Multiply the following fractions:
1/3 xx 2/7
1/3 xx 2/7 = 2/21
A rule we often use to remember the steps for dividing by a fraction is K.F.C.
What does K.F.C. stand for?
Keep the first fraction the same
Flip the second fraction (reciprocal)
Change the operation: divide to a multiply
Which of the following fractions does not simplify to 1/2?
a) 50/100
b) 3/6
c) 18/34
d) 27/54
c) 18/34 (It simplifies to 9/17)
There are 4 Practice Quizzes in the Skills and Drills section. Name them (100 points for each!)
Addition practice, subtraction practice, division practice and multiplication practice.
Add the following fractions:
3/8 + 1/8
4/8 = 1/2
Subtract the following decimals:
96.1 - 12.4
96.1-12.4=83.7
How many digits will be after the decimal point for the answer to the following multiplication?
3.14 x 50.1
3
(The final answer is 157.314)
Convert 1/7 to a decimal, accurate to 3 decimal places
1/7 = 0.142857...
~ 0.143
Round 1.23456 to 2 decimal places.
1.23
On Canvas, download the PDF version of the textbook so that you have an offline copy (Support page or Topics page). What is the heading on page 268?
5A: Introduction to Algebra
What is 3.14159 + 2.718 to the nearest tenth?
3.14159 + 2.71800
= 5.85959
~ 5.9
Subtract the following fractions:
2/3 - 1/6
4/6 - 1/6 = 3/6 = 1/2
What is 33% of 90?
33% of 90 = 0.33 xx 90
= 29.7
Solve the following division problem:
0.86 divide 400
= 0.0086 divide 4 = 0.00215
Abcde got 32/40 on their maths test.
- Simplify this fraction
- State their answer as a decimal
- State their answer as a percentage
32/40 = 4/5 = 0.8 = 80%
In Study Tips, download the How to Create a Reference Sheet file. In this file, find the definition of a reference sheet.
Slide 3: A piece of paper bearing written notes intended to aid one's memory.
Add the following fractions. Express your answer as both a mixed number and an improper fraction:
2 7/15 + 3 3/10
2 14/30 + 3 9/30 = 5 23/30 or 173/30
Subtract the following decimals:
15.7 - 0.135
15.565
What is 22 x 0.22?
8.84
Solve the following and simplify your answer:
9/8 divide 3/12
= 9/8 xx 12/3 = 3/2 xx 3/1 = 9/2 or 4 1/2
Two shops have a sale on the PS5. Determine the new price at both stores:
EB Games = $500, with 15% off
JB HiFi = $450, with 10% off
EB Games: 500 x 0.85 = $425
JB HiFi: 450 x 0.9 = $405
Maths Study Hall runs every Thursday for anyone wanting some extra help in Maths. What time (200 points) and what room (200 points) does it run in?
Thursday from 3:15-4:15pm in M153
(Senior school: Wednesday from 3:15-4:15pm in C201)
Add the following fractions and state your final answer as a fraction and a decimal.
1 2/3 + 4/5 + 10/12
1 40/60 + 48/60 + 50/60
= (100 + 48 + 50)/60
= 198/60
= 33/10 OR 3 3/10 = 3.3
Subtract the following. Give your answer as both a fraction and as a decimal:
6.3 - 3 1/2 - 12/5 - 1/100
Decimal = 6.30 - 3.50 - 2.40 - 0.01
= 0.39
Fraction = 630/100 - 350/100 - 240/100 - 1/100
= 39/100
Complete the following multiplication and express your final answer as both a decimal and as a fraction:
1.25 xx 5 3/10
Decimal = 1.25 xx 5.3
= 6.625
Fraction = 10/8 xx 53/10 = 53/8
= 6 5/8
Complete the following division and express your final answer as both a decimal and as a fraction:
(0.5 divide 0.02)/(37.5 divide 0.3)
= (50 divide 2)/(375 divide 3)
= 25/125 = 1/5 = 0.2
Place the following in order from largest to smallest:
76%, 0.81, 30/40, 48/60, (9/5 x 2/5)
0.81, 48/60, 76%, 30/40, (9/5 x 2/5)
(0.81, 0.80, 0.76, 0.75, 18/25 = 0.72)
On Canvas, go to the Assessment and Revision page. Download the file labelled "Fractions Decimals and Percentages Test 2021 Suggested Solutions." You will get 100 points for each answer you can find!
- How many marks are available in total?
- Are you allowed a Calculator?
- What is the answer to Question 3?
- Is your A4 reference sheet single sided or double sided?
- What percentage of the available marks are from the Foundation Section?
Total Marks = 52, Calculator = No, Q3 = 21/8, Reference sheet: Single Sided, Foundation % = 26/52 -> 50%