Vocabulary
What do we call the result of multiplying two numbers?
The product
If a box has 23 apples and there are 4 boxes, how many apples are there in total?
92
Draw an area model for multiplying 12 by 34
Check answers
Estimate the product of 26 and 15 by rounding. What is it?
30 x 20 = 600
100: Calculate 12 x 14 using partial products.
168
What is a two-digit number?
What is a number between 10 and 99?
Jamie buys 14 packs of stickers. Each pack has 25 stickers. How many stickers does Jamie have?
350
Calculate using an area model: 23 x 14.
442
200: If you estimate 48 x 32, what rounded numbers would you use?
50 x 30
200: Multiply 23 by 32 using area models.
736
What is the term for breaking a number into parts to make multiplication easier?
Partial Products
A farmer has 12 rows of corn with 34 plants in each row. How many corn plants are there total?
408
What are the expanded form for the area model for 25 x 16?
20 + 5 and 1 + 6
300: Round 57 x 24 to the nearest ten and estimate the product.
1,200
300: Find the product of 45 and 26 using partial products.
1,170
What is an area model in multiplication?
a visual way to show multiplication using rectangles
There are 15 students in each of 28 classes. How many students are there in total?
420
Explain how to use an area model to find the product of 32 and 21.
Check answers
400: Estimate the product of 19 and 43 by rounding both numbers.
800
400: Calculate 34 x 21 using area models.
714
What do we call the number you multiply by?
A factor
If a bicycle costs $45 and you want to buy 23 bicycles, how much will it cost?
$1,035
Create an area model for 47 x 29 and calculate the product.
1,363
500: What is the estimated product of 88 and 56?
4,800
500: What is 56 multiplied by 87 using partial products?
4,872