Fractions
A student reads 3/5 of a book on Monday and 1/5 on Tuesday. What fraction of the book is left?
1/5
Find the total cost: $3.75 + $2.40
$6.15
The temperature drops from 2°C to −4°C. What is the change?
−6°C
What is 25% of 80?
20
Which is greater: −3/4 or −0.6?
−0.6
A recipe needs 3/4 cup of sugar. If you triple the recipe, how many cups of sugar are needed?
2 1/4 cups
A sandwich costs $6.50, and a drink costs $1.85. How much do both cost together?
$8.35
A diver is −15 feet below sea level and rises 7 feet. What is the diver’s new position?
−8 feet
A shirt costs $40 and is discounted 10%. What is the discount amount?
$4
Estimate: Is 1.9 × 4.8 closest to 8, 9, or 10?
9
You have 2 1/2 pounds of trail mix. You eat 3/4 pound. How much remains?
1 3/4 pounds
A runner jogs 2.4 miles in the morning and 1.75 miles in the evening. What is the total distance?
4.15 miles
A video game score starts at −20 points. You gain 35 points. What is your new score?
15
A video game costs $60 plus 8% tax. How much is the tax?
$4.80
A container holds 6.5 liters of juice. 3/5 of the juice is poured out. How much juice remains?
2.6 liters
A ribbon is 5 2/3 meters long. It’s cut into 1/3‑meter pieces. How many pieces are made?
17 pieces
A movie rental costs $12.00. A coupon discounts it by $3.75. What is the new cost?
$8.25
A bank balance is −$45. You deposit $60 and then withdraw $10. What is the final balance?
$5
An $80 jacket is discounted by 25%, then $6 shipping is added. What is the final cost?
$66
A customer buys 3 items at $2.40 each, uses a $1.50 coupon, and pays 8% tax on the discounted price. What is the total?
$6.13 (rounded to the nearest cent)
A tank holds 12 gallons of water. 3/8 of the water is drained. How many gallons remain?
7 1/2 gallons
A teacher buys 8 notebooks that cost $1.25 each. What is the total cost?
$10.00
A hiker descends 120 feet, then climbs 45 feet, then descends 30 feet. What is the net change in elevation?
−105 feet
A student’s test score increases from 70 to 84. What is the percent increase?
20%
Explain why multiplying by 1/2 and dividing by 2 give the same result.
Both represent splitting a quantity into two equal parts