Multiples of 10
4 x 20
80
6 x 30
180
8 x 7 is the same as
(_ x 7) + (_ x 7)
3 and 5
4 and 4
2 and 6
1 and 7
An new game costs $47. If the store sells 6 games on Saturday and 2 games on Sunday, is $400 a reasonable estimate of how much the store made by selling the games?
Yes
47 is close to 50
50 x 6=300
50 x 2=100
300+100=400
Ben has 10 cars and 15 trucks. He shares the vehicles equally among 5 friends.
Does each friend get 4? If not, show the correct number.
No
10 + 15 = 25
25/ 5 = 5
4 x 30
120
6 x 40
240
9 x 8 is the same as
(_ x 8) + (_ x 8)
8 and 1
7 and 2
6 and 3
5 and 4
A new bike costs $67. The store sold 6 bikes on Saturday and 2 more on Sunday. Is $420 a reasonable estimate of how much money the store made selling bikes that weekend?
No
67 is close to 70
70 x 6 is 420
70 x 2 is 140
420 + 140 = 560 and 560 is not close to 420
Cali has 15 red stickers and 15 green stickers. She then shares the stickers equally among 10 friends.
Does each friend get 2 stickers? If not, how many does each get?
No
15 + 15 = 30
30/10 = 3
4 x 40
160
30 x 2
60
7 x 7 is the same as
(_ x 7) + (_ x 7)
6 and 1
5 and 2
4 and 3
No
77 is close to 80
80 x 9 = 720
80 x 3 = 240
720 + 240 = 960
960 is not close to 2000
Ms. Nyman has 20 fiction books and 25 nonfiction books. She passes the books out equally to 5 tables.
Does each table get 10 books? If no, how many do they get?
No
20 + 25 = 45
45/5 =9
5 x 30
150
30 x 3
90
8 x 9 is the same as
(8 x 8) + __
8
A store sells dog crates for $41. They sold 5 crates on Tuesday and another 6 crates on Wednesday. Is $450 a reasonable estimate of how much money the store made selling crates on those days?
Yes
41 is close to 40
40 x 5 = 200
40 x 6 = 240
200 + 240 = 440
440 is close to 450
Jayden has 32 epic Pokemon cards and 18 legendary ones. She shares the cards equally among 5 friends.
Does each friend get 12 cards? If not, how many do they get?
No 32 + 18 = 50
50/5= 10
6 x 20
120
30 x 7
210
7 x 6 is the same as
(7 x 5) + _
7
A store sells swimming pools for $98. They sold 6 pools on Saturday and 3 more on Sunday. Is $900 a reasonable estimate for how much money they made selling pools that weekend?
Yes
98 is close to 100
100 x 6 =600
100 x 3 = 300
600 + 300 = 900
Makayla earned 16 points in the morning and 11 more points in the afternoon. She spent her points on 3 prizes that each cost the same amount.
Did each prize cost 5 points? If not, how many points did they cost?
16 + 11 =27
27/3 = 9
So No