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)
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
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 22 x 0.22?
8.84
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%
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 2.34 x 5.6?
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
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)