0's and 1's Multiplication
0 x 3 =
1 x 4 =
0
4
2 x 8 =
16
5 x 7 =
35
9 x 3 =
27
10 x 9 =
90
When multiplying by 0's, what is always in the ones place?
0
When multiplying by 2's, what is always in the ones place?
An even number
When multiplying by 5's, what is always in the ones place?
A zero (0) or five (5)
When multiplying by 9's, what are two of the patterns that can be used to find the answer?
Finger method, skip counting, repeated addition, boxes,...
When multiplying by 10's, what is always in the ones place? When multiplying 10 by a single digit, what is in the ten's place?
A zero (0)
4 x 10 = 40 The number in the ones place is the original number that was multiplied by 10.
Anna had 6 plates. She had 1 banana, 1 apple, and 0 grapes on each plate. How many apples does Anna have? How many grapes does Anna have? Write equations to find the answers.
6 x 1 = 6
6 x 0 = 0
6 apples and 0 grapes
A flashlight requires 2 batteries to function. How many batteries in all would 7 such flashlights require? Write an equation to find the answer.
2 x 7 = 14
14 batteries
Joe prepared games for his 4 friends. If each game takes 5 minutes to prepare and he prepared a total of 5 games, how many minutes did it take for Andrew to prepare all the games? Write an equation to find the answer.
5 x 5 = 25
25 minutes
There are 9 erasers in each box. There are 9 boxes of erasers. How many erasers are there in all? Write an equation to find the answer.
9 x 9 = 81
81 erasers
Michelle searched through all 6 of her drawers and found ten $5 bills. What is the total value of money does she have in $5 bills? Write an equation to find the answer.
10 x 5 = 50
$50
0x1=1
Is this true or false? What property of multiplication proves this to be correct or incorrect?
0 x 1 = 0
False. The zero property of multiplication.
2x1=1x2
Is this true or false? What property of multiplication proves this to be correct or incorrect?
True because of the communitive property of multiplication.
5 x 8 = 42
Is this true or false? If false fix the problem and tell me why it is incorrect.
False because when you multiply by 5's the ones place has to be a zero (0) or five (5).
5 x 8 = 40
Norah uses an ounce of butter to bake 9 cookies. How many cookies can she bake with 8 ounces of butter? Write an equation to find the answer.
9 x 8 = 72
72 cookies
10 x 35 = 356
Is this true or false? If false fix the problem and tell me why it is incorrect.
False because when multiplying by 10 there needs to be a zero in the ones place.
4356 x 1 = 4356
Is this true or false? What property of multiplication proves this to be correct or incorrect?
True. The identity property of multiplication.
Andrew made some juice from fresh oranges. If he used 2 oranges per glass of juice and he made 6 glasses of juice, how many oranges did he use? Andrew has 10 oranges. Does he have enough to make all 6 glasses of juice. Write an equation to find the answer.
2 x 6 = 12
12 oranges
No Andrew needs to get 2 more oranges to make 6 glasses of juice.
Bob has 5 bottle of pickles. In each bottle there were 12 pickles. How many pickles in all? Bob wants to make 10 sandwiches with 5 pickles on each sandwich. Will he have enough for each sandwich? Write an equation to find the answer.
5 x 12 = 60
60 pickles
10 x 5 = 50
60 - 50 =10
He can make 10 sandwiches with 10 pickles leftover.
Lola has 81 dollars. Lola spent $9 for each of her shirts. She has 6 shirts. Write an equation for how much money she spends for all of her shirts. Can she buy any more shirts? How many more?
9 x 6 = 54
$54
81 - 54 = 27
27 / 9 = 3
3 more shirts.
Brett wants to play basketball for 10 minutes a day for 10 weeks. How many minutes will he play basketball? Write equations to find the answers.
10 x 7 = 70
70 x 10 = 700
700 minutes