Multiplication of 2-Digit Numbers by 1-Digit Numbers

In this video, Sam needs help counting items before playing soccer. The video demonstrates counting eggs, flowers, and apples using both addition and multiplication. It explains the use of a place-value chart for multiplication, emphasizing the efficiency of multiplication over repeated addition.

What is the total number of eggs if there are four trays with 12 eggs each?

• 60

• 52

• 48

• 36

How do you multiply 12 by 4 using a place-value chart?

• Write 4 in the tens column and multiply by 12

• Write 12 in the tens and ones columns and multiply by 4

• Write 12 in the tens column and multiply by 4

• Write 12 in the ones column and multiply by 4

How many flowers are there in total if there are 3 bunches with 20 flowers each?

• 60

• 50

• 40

• 70

What is the first step in multiplying 20 by 3?

• Multiply the ones digit of 20 by 3

• Multiply the tens digit of 20 by 3

• Subtract 3 from 20

• Add 20 and 3

If there are two packs of apples with 32 apples each, how many apples are there in total?

• 80

• 72

• 64

• 54

What is the result of multiplying the ones digit of 32 by 2?

• 4

• 2

• 6

• 8

What do you get when you multiply the tens digit of 32 by 2?

• 7

• 6

• 5

• 4