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Multiplication
Conversion Tables
Number Stories
Area and Perimeter
Surprise
100
What is 70x60
4,200
100
Find the number of millimeters: Liters Millimeters 2 5 9 21
Millimeters 2,000 5,000 9,000 21,000
100
Dan, Chad, and Sam are sharing two donuts. Each donut is cut into 6 equal pieces. How many pieces are there in all? ________pieces Write a fraction to show each boy's share. Draw a picture to help you solve the problem
12 pieces 4/12 or 1/3
100
What is the formula for area and perimeter? A= P=
A=LxW P= L+L+W+W
100
List the first 6 multiples of 8
8,16,24,32,40,48
200
What is 900x4
3,600
200
Explain in words how you found how many millimeters are in 9 liters.
I know that there are a 1,000 millimeters in 1 liter so when I have 9 liters, I need to multiply 9 x 1000 to get my answer for millimeters.
200
Bonnie's cup is 0.50 full of juice. Her sister's cup is different but her cup is also 0.50 full of juice. Do they have the same amount of juice? Explain your answer
You can't tell. You don't know what size cups they have. Just because the cups are equally filled doesn't mean they ahve the same amount.
200
A tool bench is 35 inches long and 19 inches wide. How many square inches of the basement floor does it cover? Equation:___________ Answer: ____________ square inches
35x9=665 665 square inches
200
List all the factor pairs of 48
1 and 48 2 and 24 3 and 16 4 and 12 6 and 8
300
What is 5,000x9
45,000
300
Find the number of grams Kilograms (kg) 3 8 12 25
Grams (g) 3,000 8,000 12,000 25,000
300
Each time a baseball pitcher pitches the ball over home plate, the ball travels about 20 yards. About how far will the ball have traveled from the pitcher to home plate after 9 pitches? Answer_______ How many feet is that? _______
Answer: 180 yards How many feet is that? 540 feet
300
Mrs. Torres wants to tile her bathroom floor. The room is 10 feet wide and 15 feet long. How many square-foot tiles does Mrs. Torres need to cover the floor? a. _______ tiles b. What is the perimeter of Mrs. Torres' kitchen? _____ feet
a. 10x15=150 tiles b. 10+10+15+15=50 feet
300
What is 87x5? (Use a multiplication strategy of your choice)
435
400
What is 20x50
1,000
400
Explain how you found how many grams are in 8 kilograms
I know that there are a 1,000 grams in 1 kilogram so when I have 8 kilograms, I need to multiply 8 x 1000 to get my answer for grams.
400
Karen, Holly, and Mary drove together to see their grandparents. Holly drove 74 miles and Karen drives three times as far as Holly. Then Mary drives twice as far as Holly and Karen combined. How far did Mary drive? Estimate Number Model with unknowns Answer _______miles Is your answer reasonable? explain
Estimate: 70x3=210 210+70=280 280x2=560 Number model with unknown: 74x3=D Dx2=X Answer: 592 miles Is your answer reasonable: Yes, because 592 is close to 560
400
A professional basketball court measures 94 ft by 50 ft. A high school basketball court measures 84 ft by 50 ft. Write a formula for the perimeter of a rectangle. Use it to find the perimeter of each court. Formula? Professional court? High School court?
Formula: l+l+w+w Professional court: 288 ft High School court: 268 ft.
400
Solve using US traditional subtraction 25,000-13,188=
11,812
500
What is 62x7? (use a multiplication strategy of your choice)
434
500
Find the number of feet Inches (in) 24 48 144 72
Feet (ft) 2 4 12 6
500
John is buying an Xbox for $548. John paid for the Xbox using four $100 bills, thirteen $10 bills, and thirty-four $1 bills. How much did John pay? Write number models to show your thinking Did John pay the exact amount, too little, or too much? Explain
400+130+34=$564 John paid too much. The Xbox cost $548 and John paid $564, so he paid $16 too much
500
Find the area and perimeter of a rectangle that has a width of 14.5 and a length of 22.5 Perimeter ________ Area _________
P= 74 A = 337.5
500
Round the following number to the nearest ten-thousand 487,346
490,000