Order of operations
Doubling & Halving
Volume
Division
Make a 10
Make a 100
Make a 100
100
2 x (3 x 2) + 2 x ( 1 x 7) + 2 x ( 4 x 2)
42
100
Write an expression and solve
To find 28 x 25, double and half
28 x 25 = 14 x 50 = 700
100
Challenge
Volume 1: (3 x 2) x 2 =12
Volume 2: (3 x 2) x 4 = 24
12 + 24 =
36
100
A box hold 570 chromebook chargers . each layer has 38 chargers. How many layers does the boc have?
15
100
26 x 97 = (___ x ____ ) - ( ___ x ___) = ______
26 x 97 = (26 x 100 ) - ( 3 x 26) =2,522
200
2 x (2 x 6) + 2 x (3 x 3) + 2 x (4 x 2)
58
200
Write an expression and solve
To find 32 x 11, I double and half
32 x 11 = 16 x 22 = 352
200
Logan counted the number of books on one layer of a box, 35. The box has 7 layers. How many books can the box hold?
245
200
There are 130 5th graders at Jennie Moore. We are going on a field trip that includes boats. Each boat can hold 11 people. How many boats do we need?
12
200
Write an expression and solve
To find 15 x 42, I multiply 10 times 42 and add it to 5 times 42
15 x 42 = (10 x 42) + (5 x 42) = 630
300
(40 x 43) - (1 x 43)
1,677
300
Write as an expression and solve
To find 14 x 3, I double and half
14 x 3 = 7 x 6 = 42
300
(3x4) x 2 = 24
300
8 friends sold popcorn at a baseball game of Sunday. They made a total of $196.00. How much money would each person get if they split the money evenly?
$24.50
300
Write and expression and solve:
To find 34 x 9, I multiply 34 times 10 and remove 1 group of 34
34 x 9 = (34 x 10) - (1 x 34) = 306
400
3 x (17 x 2)
102
400
___ x 18 = 2 x 9 = _____
1 x 18 = 2 x 9 =18
400
What are the three dimensions needed to find the volume of a rectangular prism?
Length, width, and height
400
There are 90 people on a cross country running club. They are competing at a meet on the other side of town. If each van they take can told 12 people. How many vans do they need for everyone to go?
8
400
72 x 98 = ( __ x 100) - ( 2 x 72) = ____
72 x 98 = (72 x 100) - ( 2 x 72) = 7,056
500
7 x (3 x 4)
84
500
___ x 4 = 5 x 8 = _____
10 x 4 = 5 x 8 =40
500
(4 x 3) x 3 = 36
500
4 friends sold lemonade on Saturday. They made $50.00. How much money does each person get if they split it equally?
$12.50
500
43 x 98 = ( __ x 100) - ( 2 x 43) = ____
43 x 98 = ( 43 x 100) - ( 2 x 43) = 4,214