Base Ten
Provide 2 other ways of representing:
105
10X10X10X10X10
100,000
Find the value of the pattern:
35 X 101
35 X 102
35 X 103
350
3,500
35,000
Romelik quickly estimated the product of 295 × 17 this way:
• She rounded each number to the nearest ten.
• She multiplied these new numbers together.
What was Romelik's estimate?
295--> 300
17-->20
300X20= 6000
Name the property of multiplication
11 x (4 x 6) = (11 x 4) x 6
associative property of multiplication
Antoinne's dad drives 237 miles on his route each day. He drove the bus 37 days last month. How many miles did Antoinne's dad drive last month?
**don't forget the label**
237 X 37=
8769 miles
A bank teller has 4 hundred-dollar bills and 4 one-dollar bills. How many times greater is the value of the 4 hundred-dollar bills than the 4 one-dollar bills?
240 if 10 times as much as ________
24
Jaxon quickly estimated the product of 43 × 14 this way:
• He rounded each number to the nearest ten.
• He multiplied these new numbers together.
What is Jaxon's estimate?
43--> 40
14-->10
40x10= 400
18 x 2 = 2 x 18
commutative property of multiplication
Sumaiya owns 183 sets of painting kits. Each set has exactly 27 paint brushes in it. What is the total number of paint brushes Sumaiya owns?
*don't forget labels*
183 x 27=
4941 paint brushes
60 is 1/10 of _________
600
_____ is 10 times as much as 86
860
Use compatible numbers to find two estimates.
379 ÷ 47
_______ ÷ _______ = _______
_______ ÷ _______ = _______
47-->50
350 ÷ 50= 7
400 ÷ 50= 8
4 x 72 = (4 x 70) + (4 x 2)
distributive property of multiplication
Anyiah has 456 grams of sand. She will put an equal amount of the sand into 12 bags. How many grams of sand will be in each bag?
Write an expression to represent how to find the amount of sand and then solve it.
**must include label**
456 divided by 12 = 38 bags
________ is 1/10 of 7000
700
________ is 1/100 of 9000
90
Use compatible numbers to find two estimates.
8792 ÷ 23
_______ ÷ _______ = _______
_______ ÷ _______ = _______
23--> 20
6000÷ 20=300
8000 ÷ 20= 400
10000÷20= 500
Name the property of multiplication that states:
The product of [1] and any number is that number
identity property of multplication
Jorge has 125 mangas in his room. He is storing them in boxes for his big move. Each box holds 13 mangas.
How many boxes does Jorge need? Justify your answer by showing your work! Don't forget to include labels.
125 divided by 13
9 R 8. So think he has 8 left over... so that means he needs 10 boxes to store ALL of his mangas!