Multi-digit Multiplication
10 x 34
340
Write a repeated addition sentence for 5 x 4
4 + 4 + 4 + 4 + 4 = 20
What are factors?
The numbers that are multiplied together to give a product
Write one multiple of 2
2, 4, 6, 8, 10, 12 ....
Jack bought two boxes of candy canes. Each box has twelve candy canes in it. How many candy canes did Jack buy?
24 candy canes
24 x 5
120
Write a multiplication equation that shows the zero property.
any number times zero equals zero
What does it mean to be a prime number?
the number only has 2 factors; 1 and itself
True or false: All multiples of 2 are even
True
Jason sent 14 packages. Each package needed 5 stamps. How many stamps did Jason use in all?
14 x 5 = 70 stamps
359 x 6
2,154
What property is shown in this equation:
35 x 1 = 35
Identity property
Which numbers are composite?
23, 32, 41, 65, 87, 90
32 - even numbers
65 - has a 5 in the ones
87 - digits add up to 15 which is a multiple of 3
90 - has a 0 in the ones
Is 86 a multiple of 5?
No it does not end in 5 or 0
Jumbo gets 4 treats a day. How many treats does she get in a 3 weeks?
4 x 21 = 84 treats
75 x 40
3,000
Write the fact family for these numbers: 4, 6, 24
4 x 6 = 24
6 x 4 = 24
24 / 6 = 4
24 / 4 = 6
What is the factorization of 12?
1, 2, 3, 4, 6, 12
True or False: All prime numbers are odd.
False. 2 is the only even number that is prime
Susie decorated her house with lights. Each string of lights has 200 bulbs. If Susie hung 6 strings, how many bulbs did she hang?
200 x 6 = 1200 bulbs
78 x 25
1950
Use the commutative property to rewrite these multiplication facts:
7 x 5
3 x 8
6 x 7
5 x 7
8 x 3
7 x 6
What is the factorization of 36?
1, 2, 3, 4, 6, 9, 12, 18, 36
Is 287,690 a multiple of 10? Why?
Yes because there is a zero in the ones place. All multiples of 10 have a 0 in the tens place.
Clara made 2 dozen gingerbread cookies. She put 2 m&ms on each cookie. How many m&ms did she use?
12 (one dozen) x 2 = 24 cookies 24 x 2 = 48 m&ms