Multiply and Divide
What is 7 x 9 ?
63
A square has a side length of 8 square inches. What is the area of the entire square?
8 x 8 = 64 square inches
What does the denominator represent in a fraction?
The denominator represents the number of equal parts/pieces.
Terri and Mike each bought 70 donuts from a bakery. The total number of donuts they bought can be found using the expression shown below.
2×70
What is the total number of donuts Terri and Mike bought from the bakery?
140 donuts
Tom went to the mall at 1:00. He shopped for 35 minutes. What time was he finished?
1:35
What is 42 divided by 6?
A rectangle has a top length of 7 sq inches and a side length of 4 square inches.
What is the area of the rectangle?
What is the perimeter of the rectangle?
area - 7 x 4 = 28 square inches
perimeter - 7 + 7 + 4 + 4 = 22 square inches
How do you make a fraction equal to 1 whole?
Give an example.
You make a fraction equal to 1 whole by making the numerator and the denominator the same.
A brick path has 10 rows of 4 bricks. How many bricks are in the path?
40 bricks
Macie starts her homework at 4:17. It takes her 32 minutes to complete her homework. What time is she finished?
4:49
What is 6 x 40?
240
A computer has a rectangular screen with a width of 6 inches and a length of 8 inches. Write the three ways to calculate the area of the screen, in square inches.
8 x 6 = 48
6 x 8 = 48
8+8+8+8+8+8=48
6+6+6+6+6+6+6+6=48
Casey cut a pizza into eight equal pieces. She ate 3 pieces of pizza.
What is the fraction of the pizza that is left?
5 eighths
Jimmy and Kima are going on a trip. They will drive for three days. The first day they will drive 182 miles. The second day they will drive 439 miles. The third day they will drive 217 miles. Which expression is the closest estimate of how many miles Jimmy and Kima will drive on their trip?
A. 100+400+200
B. 200+400+200
C. 200+500+200
D. 200+500+300
B.
A boat ride across a lake is 47 minutes each way. How many minutes does the boat ride take to go across the lake and back?
94 minutes
What is 30 x 80?
2,400
What is the difference between finding area and perimeter?
Student response may vary.
Maya eats 2/4 of a small pancake. Ben eats 2/4 of a large pancake.
Did they eat the same amount of pancake?
They did not eat the same amount of pancake because the wholes have to be the same size to compare.
Mary is giving away 20 stickers to 4 of her friends. She gives each friend the same number of stickers. One of the friends, Natasha, already had 2 stickers.
Write an equation to find the number of stickers Natasha has.
5+2=7
Charlie started practicing guitar at 2:40. He practiced for 1 hour and 15 minutes. What time did he finish?
3:55
Jacob has 64 stuffed animals that he will give to 8 different friends. He will give an equal number of stuffed animals to each friend. Fred uses the equation 64÷8=? to find how many stuffed animals he will give to each friend. He thinks the ? equals 7.
Explain why he is wrong.
Student answer may vary.
Jackson draws a rectangle with an area of 54 square inches. The width of the rectangle is 9 inches.
What is the length of the rectangle?
6 inches
What whole number is 8 fourths equal to?
2
Scott visits the library. It takes Scott 17 minutes to walk from his house to the library. He stays at the library for 40 minutes. His mother drives him home, which takes 15 minutes. How many more minutes does he spend at the library than traveling to and from the library?
40 - 32 = 8 minutes
Sanders ran for 22 minutes. Gabe ran 7 minutes longer than Sanders did. Helen ran 12 minutes less than Gabe.
For how many minutes did Helen run?
Helen ran for 17 minutes.