Addition
Solve: 324 + 131 = ?
455
What color are pumpkins usually associated with?
Orange
Solve: 2 × 3 × 5 = ?
30
This is the result of adding numbers.
Sum
Solve: 487 − 265 = ?
222
What is the sum of 318 + 457?
775
What do people traditionally say when they go door-to-door for Halloween treats?
Trick or Treat
Solve: 3 × 5 × 3 = ?
45
This is the solution after subtracting one number from another.
Difference
Write 697 in expanded form.
600+90+7
Solve: 191 + 264 = ?
455
Which month is Halloween celebrated in?
October
Solve: 6 × 10 × 5 = ?
300
This is a number multiplied by another number to find a product.
Factor
Solve: 917 − 159 = ?
758
A school has 436 books and gets 322 more. How many books now?
758 books
What carved vegetable is most commonly used as a Halloween lantern?
A pumpkin
Rewrite 2 × 6 × 10 by grouping an easy pair first, then solve.
2 × (6 × 10) = 120
This is the result when two or more numbers are multiplied.
Product
A farm has 265 peaches and sells 197. How many are left?
68 peaches
Write 475 in expanded form.
400 + 70 + 5
What animal is famously associated with witches?
A cat
Solve: 4 × 3 × 10 = ?
120
This means to take one quantity away from another.
Subtract
What is the difference between 70 and 47?
23
A class reads 187 pages on Monday and 209 pages on Tuesday. How many pages altogether?
396 pages
In classic Halloween stories, what creature is known for turning into a bat?
A vampire
Fruit snacks: 2 boxes × 9 packs × 5 snacks. How many snacks?
90 fruit snacks
This property lets you change the grouping of factors without changing the product.
Associative Property
Explain how expanded form can help when subtracting.
It breaks numbers into place-value parts so the subtraction can be worked out more easily.
Explain how expanded form can help you add.
It breaks a number into place-value parts, making the addition easier to see and calculate.
What U.S. city is famous for its historic association with the Salem witch trials?
Salem, Massachusetts
What does the associative property allow you to change?
The grouping of the factors, without changing the product.
This means to combine equal groups.
Multiply
A library has 954 books. 429 are checked out. How many remain?
525 books