Creepy Ratios
There are 8 pumpkins and 4 ghosts. The ratio of pumpkins to ghosts is this.
What is 2 to 1?
Half of 20 zombies came out to dance. This many zombies were dancing.
What is 10?
Each skeleton has 2 glowing eyes. 7 skeletons have this many eyes.
What is 14?
A square spiderweb has sides 4 inches long. Its perimeter is this.
What is 16 inches?
If a bar graph shows 5 bats for Monday and 10 for Tuesday, Tuesday has this many more bats.
What is 5 more?
Trick-or-treating starts at 6 PM and ends at 8 PM. It lasts this long.
What is 2 hours?
A potion uses 3 cups of slime for every 9 cups of bat juice. Simplify the ratio.
What is 1 to 3?
A pumpkin pie was cut into 8 pieces. You ate 3. You ate this fraction of the pie.
What is 3/8?
There are 6 bats in each cave. If there are 9 caves, how many bats total?
What is 54?
A pumpkin patch shaped like a rectangle is 5 yards long and 3 yards wide. Find the area.
What is 15 square yards?
A line plot shows candy counts of 3, 4, 4, 5, and 6 pieces. The mode of the data is this.
What is 4?
Each candy bar costs $2. You buy 4. The total cost is this.
What is $8?
In a haunted house, there are 12 skeletons and 18 cobwebs. Simplify the ratio of skeletons to cobwebs.
What is 2 to 3?
A ghost floated through 2/5 of the haunted hallway. If the hallway is 50 feet long, how far did it go?
What is 20 feet?
Each mummy has 3 rolls of bandages. If there are 12 mummies, how many rolls total?
What is 36?
A triangular candy corn has a base of 8 cm and a height of 5 cm. Find its area.
What is 20 square cm?
The range of the numbers 2, 5, 8, and 10 is this.
What is 8?
A vampire took 45 minutes to fly home. That’s this many minutes less than an hour.
What is 15 minutes?
A cauldron recipe calls for 6 parts frog legs to 10 parts spider eyes. If you double it, what’s the new ratio?
What is 12 to 20?
A witch used 3/4 of her potion. She had 12 ounces left. How much was in the full potion?
What is 16 ounces?
Each pumpkin costs $5. If you buy 18 pumpkins, how much do you spend?
What is $90?
A haunted fence surrounds a rectangular graveyard that’s 15 ft by 25 ft. Find the perimeter.
What is 80 feet?
A pie chart shows that 25% of candy is chocolate. If there are 200 pieces total, how many are chocolate?
What is 50?
You buy a mask for $12.50 and candy for $8.25. What’s the total?
What is $20.75?
A witch’s brew has 5 drops of ghost tears for every 8 drops of bat blood. If she uses 40 drops of bat blood, how many ghost tears?
What is 25?
A vampire drank 2/3 of a 90 mL bottle of blood juice. How much is left?
What is 30 mL?
Each witch brews 24 potions per night. If 15 witches are working, how many potions total?
What is 360?
*Challenge*
A circular cauldron has a radius of 7 cm. Use 3.14 for
π
to find the area.
What is 153.86 square cm?
A data set of 1, 2, 3, 4, 5 has a mean of this.
What is 3?
You have $50. You spend $37.65 on decorations. How much is left?
What is $12.35?