Candy Corn
What is the product of 8x10?
80
What equation would you write to figure out the product of an array with 3 rows of 100?
3x100
Find the product of 52x8.
416
16x7
112
70+42
Find the product of 90x6.
540
What number does "n" represent in the equation 6x723=n?
4338
How could we find the CLOSEST estimate for 7x72?
7x70=490
What equation shows the number of squares in an array of 6 rows of 10?
6x10
Find the product of 60 and 5.
300
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
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
If there are 53 calories in an Oreo cookie, how many calories are in 6 Oreo cookies?
53x6= 318 calories
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
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
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
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.
What partial products will help you find the product of 5x37?
5x7 (35) and 5x30 (150)
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
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 10 TV shows at $42 each. Which gift option is too expensive for him to buy?
8 e-readers would cost $560
What partial products will help you find the product of 6x803?
6x3 (18) and 6x800 (4800)
Draw an array for the question 24x3. Show how you can use breaking apart and partial products to find the answer.
Answers will vary.
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.
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.
Use rounding to estimate the product of 9x92. Then 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 partial products, my actual answer would be 828 (810+18). Based on my estimate, my answer is reasonable because it is close to the estimated total.
Use a basic multiplication fact to write a multiplication problem with 7,200 as the product. Explain your thinking.
I don't know what factors go into 7,200 off the top of my head, but I do know that 8x9=72. 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 80x90=7,200 or 800x9=7,200