Function Machines
In this function machine, the number 12 is entered and 16 comes out. What could be a possible rule?
Add 4
Round 172 to the nearest 10.
170
Write the multiplication sentence for the following repeated addition sentence. 4 + 4 + 4 + 4
4 X 4 = 16
If something is being divided in half, how many smaller parts are you making?
Two
Brandon buys five boxes of pencils. Each box contains 10 pencils. How many pencils does he have altogether? Sketch an array and number model.
5 X 10 = 50 pencils (five groups of 10)
In this function machine, the number 18 is inputted and the number 9 comes out? What can be a possible rule?
Subtract 9 or divide by two (half)
Round 639 to the nearest 100.
600
What kind of fact is 7 X 7?
Doubles fact (7 X 7 = 49)
56 divided by what equals 7?
8
Mia bought 4 packages of 6 stamps, and Brooke bought 6 packages of 4 stamps. Who has the most stamps?
They both have the same amount.
What is the rule in this sequence? 3, 6, 12, 24, 48, 96
Multiply by two
Estimate the sum of 14 + 65.
80 (10 + 70)
In the following multiplication equation, which two numbers are the factors? 3 X 12 = 36
3 and 12 (they are being multiplied together)
In the following equation, what is the dividend? 63 / 9 = 7.
63 is being divided by a smaller number
5 stickers
What is the next number in this sequence? 27, 9, 3, ?
1 (Divide by three rule)
Estimate the difference of 283 and 194.
100 (300-200) or 90 (280-190)
Write a multiplication equation using this product: 42
1 X 42, 42 X 1, 21 X 2, 2 X 21, 6 X 7, 7 X 6)
What is the quotient of 48 / 8 = 6
6 (the answer to a division problem)
Rafay wanted to purchase colored pencils, so he decided to buy some boxes for $6.00 each. He spent a total of $36.00. How many boxes of colored pencils did he purchase?
6 boxes
The rule is multiply by 5. What are the missing numbers? ?, 10, ?, 250
5 and 50
Where would 1,675 fall on a number line?
Between 1,500 and 2,000
Would the product of 13 and 13 be even or odd?
Odd (169)
Which quotient is greater? 36 / 4 or 72 / 9?
36 divided by 4 is 9, which is greater than 8.
Create a word problem using these numbers: 24, 8, and 3. It can be multiplication or division.
Check students' work.