Let It Snow
Jingle Bells
Deck the Halls
Holly Jolly Holidays
And a Happy New Year!
100
What is the product of 8x10?
80
100
What equation would you write to figure out the product of an array with 3 rows of 100?
3x100
100
Find the product of 52x8.
416
100
Kyle practices guitar for 3 hours a day. How many hours of guitar will he practice in 1 week?
21 hours
100
Find the product of 90x6.
540
200
What number does "n" represent in the equation 6x723=n?
4338
200
How could we find the CLOSEST estimate for 7x72?
7x70=490
200
What equation shows the number of squares in an array of 6 rows of 10?
6x10
200
Find the product of 60 and 5.
300
200
Which will cost more than $600? 5 bikes at $129, 10 skateboards at $52, or 12 sets of rollerblades at $45?
5 bikes at $129= $645
300
At Happy Day DayCamp, each child gets to call their families for 12 minutes each day. If 7 campers want to call their families on the second day of camp, how long will it take for all of them to make their calls?
7x12=84
300
If there are 53 calories in an Oreo cookie, how many calories are in 6 Oreo cookies?
53x6= 318 calories
300
Jessica is rearranging the class bookshelf. She discovered that she can fit 82 books on a shelf. What is a reasonable estimate of how many books she can fit on 7 shelves?
80x7= about 560 books
300
A video store has 7 rows of movies. There are 86 movies in each row. How many movies does the store have?
86x7=602 movies
300
The height of one tree is 26 feet tall. The height of a redwood tree is 9 times that. How tall is the redwood tree?
26x9= 234 feet
400
A small airplane can fly 122 miles each hour. If it flies at around the same speed, about how many miles can it travel in 4 hours?
About 480 miles, because 122x4 is about 120x4 which equals 480.
400
What partial products will help you find the product of 5x37?
5x7 (35) and 5x30 (150)
400
Julie can fit about 21 glass figurines on a shelf in her room. What is the best estimate for how many figurines she can put on 5 shelves?
5x20=100 figurines
400
Jason has $500 dollars to spend on holiday gifts. He has 3 choices of what he could buy: 24 DVDs at $20 each, 8 e-readers at $70 each, or 14 TV shows at $35 each. Which gift option is too expensive for him to buy?
8 e-readers would cost $560
400
What partial products will help you find the product of 6x803?
6x3 (18) and 6x800 (4800)
500
Draw an array for the question 24x3. Show how you can use breaking apart and partial products in your array to find the answer.
Answers will vary.
500
Stephanie listens to the same song 32 times each week for 8 weeks straight. How many times does she listen to the song in that time? Explain how you can use partial products to find the answer.
I know that Stephanie listens to the song 256 times during 8 weeks. I can break 32 up to make it easier to solve. I know that 2x8=16, and that 30x8=240, so I can add these partial products and find that 240+16= 256.
500
Use a basic multiplication fact to write a multiplication problem with 4,900 as the product. Explain your thinking.
I don't know what factors go in to 4,900 off the top of my head, but I do know that 7x7=49. I know that because I took two 0s off of the product, I must put them back on to the factors. So I know that 70x70=4,900 or 700x7=4,900.
500
Use rounding to estimate the product of 9x92. Then use compensation to find the actual answer. Based on your estimate, is your actual answer reasonable? Why or why not?
9x92 can be rounded to 9x90 to get a good estimate. My estimate is that the answer will be about 810. Using compensation, I know that I had to subtract 2 before I multiplied, so now I must find 9x2 (18), and add that back on in the end. My total answer would be 828. Based on my estimate, my answer is reasonable because it is close to the estimated total.
500
Katie is wallpapering her square bedroom. Each wall is 12 feet long. Each foot of wallpaper costs $3. How many feet of wallpaper will Katie need to buy? Do you have enough information to solve the question? Is there any unnecessary information? Solve, if possible.
Katie will need to buy $48 feet of wallpaper. There is enough information because the question tells us the room is a square. This means that there are 4 equal sides of 12 feet. We can take 12x4 to find out the perimeter of the room. We do not need to know how much the wallpaper costs because it does not ask us to find the total cost.
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