A) 15
B) 9
C) 8

A) 90
B) 150
C) 100

A) 900
B) 1000
C) 1500

A) 9
B) 8
C) 25

A) 20
B) 19
C) 35

A) 49
B) 50
C) 65

A) 54
B) 64
C) 84

A) 64
B) 34
C) 44

A) 34
B) 14
C) 54

A) -2
B) x2 or double
C) x3 or triple

A) 6
B) 24
C) 16

A) 32
B) 14
C) 48

A) 56+20 = ?
B) 20 + ? =56

A) 36
B) 76

A) The minutes on Sunday are less than the total minutes. 36 makes the number model true.
B) 76 is the total number of minutes for Saturday and Sunday.

A) 31-19 = ?
B) 31+19 =?

A) 12
B) 50

A) We need to add the number of both python clutches together to find out the difference. When added together, the total would be 50.
B) The difference is smaller than the larger clutch. 12 makes the number model true.

A) No this is not a good explanation. Although the picture shows the two packs of pencils Mr. Riley has, we need to add on 4 pencils not cross them out to show he gave them away.
B) Yes, it is a good explanation because Mr. Riley had 3 packs of 5 pencils eachand 2 x 5 =10. Then he gave 4 of them away and 10- 4 = 6.So he has 6 pencils left.

A) 5 + 5
B) 5 x 5

A) 10
B) 25

A) Skip count by 5s to get 25.
B) Use our hands to add 5 fingers plus another 5 fingers.

A) Put an x on 2 dots and then but an x on 9 more dots.
B) Put an x on 9 dots on the top row and then do it again on the second row.

A) 2 + 9 = ?
B) 2 x 9 = ?

A) 18
B) 11

A) 5 groups with 4 marbles in each group
B) 25 marbles

A) 5 marbles
B) 4 marbles

A) 1 marble
B) 0 marbles