Different Ways to Multiply
Use compensation (partial products) to solve 192 X 6=
Hint: Partial products has to do with place value!
192 X 6 = 12 + 540 + 600 = 1,152!
What is an equation?
A math problem with an equal sigh (=)
24 X 6 =
144!
There were twenty-one adults in line at a movie theater. That is three times the number of children in line. How many children were in line?
63 children were in line!
Use compensation/partial products to solve 318 X 4 =
318 X 4 = 32 + 40 + 1,200 = 1,272!
What does it mean when a solution in math is reasonable?
The estimate is close to your exact answer. The solution makes sense.
85 X 4 =
340!
Mrs. Mayo is buying books for her students. Each student will get eight books. She has thirty six students. How many books dies she need to order?
She needs to order 288 books!
Solve by breaking apart your factor.
417 X 3 = (3 X 7) + (3 X 10) + (3 X 400) =
1,251
What is the name for an answer to a multiplication problem?
The solution!
218 X 7 =
1,526!
Mrs. Tremblay is buying bird seed for her seven bird feeders. Each package comes with four hundred twenty five seeds. How many seeds is she buying if each bird feeder needs one package?
She is buying 2,975 seeds!
Solve by breaking apart your factor.
527 X 6 = (6 X ___) + (6 X ___) + (6 X ___) =
3,162!
What are the numbers we multiply with called?
The factors!
827 X 7 =
5,789!
Mr. Young is going on a road trip! He drives one hundred and seventy five miles a day. How many miles does he travel in a week?
1,225 miles in one week!
Solve by breaking apart your factor.
825 X 4 = (__ X ___) + (__ X ___) + (__ X ___) =
3,300!
What are partial products?
When you multiply each part of a multiplication problem separately by place value.
EX: 243 X 2 = 6 + 80 + 200
3,812 X 9 =
34,308!
Mrs. Mayo is baking mac and cheese, yum! Each serving is three cups of mac and cheese. If she is feeding nine hundred and sixty four people, how many cups of mac and cheese will she need?
She needs 2,892 cups of mac and cheese!