Multiples of 10
2 x 30=
60
2 x 50 =
100
5 x 90 = 5 x (a x 10)
5 x 90 = (5 x b ) x 10
5 x 90 = ( c ) x 10
5 x 90 = ( d )
a = 9
b = 9
c = 45
d = 450
Good Times Diner cut their peach pies into 10 slices. They have 7 pies. How many slices of peach pie do they have to sell?
70 slices
2 x 80 =
160
4 x 60 =
240
3 x 10 =
4 x 90 = 5 x (a x 10)
4 x 90 = (5 x b ) x 10
4 x 90 = ( c ) x 10
4 x 90 = ( d )
a = 9
b = 9
c = 36
d = 360
Lucy went on a trip to the beach for 6 days and collected 30 seashells each day. How many seashells did she collect on her trip?
180 seashells
3 x 70 =
210
5 x 80 =
400
5 x 50 =
250
3 x 40 = 3 x (a x 10)
3 x 40 = (3 x b ) x 10
3 x 40 = ( c ) x 10
3 x 40 = ( d )
a = 4
b = 4
c = 12
d = 120
A can of Pringles has 60 chips. How man chips would be in 7 cans?
420 chips
6 x 30 =
180
8 x 40 =
320
6 x 50 =
300
6 x 60 = 6 x (a x 10)
6 x 60 = (6 x b ) x 10
6 x 60 = ( c ) x 10
6 x 60 = ( d )
a = 6
b = 6
c = 36
d = 360
Sarah and her 3 friends each have chocolate bars. One bar of chocolate has 20 square pieces. If they put their chocolate squares together, how many will there be?
60 squares
7 x 40 =
280
270
7 x 50 =
350
7 x 30 = 7 x (a x 10)
7 x 30 = (7 x b ) x 10
7 x 30 = ( c ) x 10
7 x 30 = ( d )
a = 3
b = 3
c = 21
d = 210
There are 9 classes at Jefferson Elementary School. If there are 20 students in each class, how many students are there in total?
180 students
4 x 40 =
160