Integers
What is the sum of -5 + 8 + (-3)?
0
Convert 7/8 to a decimal, rounded to 2 decimal places.
0.88
Find the area of a circle with a diameter of 6 cm.
A = πr² → r = 3 → ≈28.27 cm²
What percent is 18 out of 25?
72%
A car travels 300 km in 4 hours. What is the unit rate in km/h?
75 km/h
Simplify: -12 ÷ 3 + 7
3
Subtract: 5/6 – 2/3
1/6
A circle has r = 5 cm. Find the circumference.
C = 2πr = 10π ≈ 31.42 cm
A coat originally costs $120. It's on sale for 30% off. What is the sale price?
$84
You pay $18 for 3 notebooks. What is the cost per notebook, and what would 5 cost?
$6 each, $30 total
A football team gains 5 yds, loses 8 yds, then gains 12 yds. What is the net gain/loss
9 yard gain
Multiply: 4/5 × 3/8 and simplify.
12/40 = 3/10
Area = 78.5 cm². Estimate the radius.
A ≈ πr² → r ≈ 5 cm
Increase 60 by 25%.
60 + 15 = 75
A scale drawing uses a ratio of 1:200. If the drawing is 5 cm long, what is the real length?
1,000 cm or 10 m
Evaluate: (–4)² – 7 × (–2).
30
If a recipe needs ⅔ cup of sugar, how much is needed for 1½ batches?
1 cup
What’s the area difference between r = 6 cm and r = 4 cm?
113.1 cm² − 50.3 cm² = 62.8 cm²
A student got 42 out of 56 on a test. What percent did they get?
75%
A juice recipe calls for a water: concentrate ratio of 4:1. How much concentrate is needed for 2 litres of water?
0.5 L
A climber drops from +1250 m to –275 m. What’s the elevation change?
1,525 m
Divide: 7/9 ÷ 2/3
7/6 or 1⅙
Circumference = 18.84 cm (π = 3.14). Find the radius.
r = 18.84 ÷ (2 × 3.14) ≈ 3 cm
A laptop costs $950. With 13% tax, what is the total cost?
$950 × 1.13 = $1,073.50
A runner completes 12 km in 1.5 hours. What is their pace per km?
7.5 minutes per km