Addition
10+7=?
17
14 - 9 = ?
5
Write the multiplication number model for this array. (Remember: number of rows times the number in each row)
x x x x x x
x x x x x x
2 x 6 = 12
5 x 6 = ?
30
Round the number to the nearest 10
57
60
43+29=?
72
48 - 23 = ?
25
Write the multiplication number model for this array. (Remember: number of rows times the number in each row)
x x x x
x x x x
x x x x
x x x x
x x x x
5 x 4 = 20
10 x 4 = ?
40
Round the number to the nearest 10
93
90
169+55=?
224
What do we say when we check the ones place if the greater number is on the floor?
(Hint: Finish the following chant - More on the floor...)
More on the floor, go next door, and borrow 10 more.
Draw an array that shows the following number model.
3 x 9 = ?
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
5 x 9 = ?
45
Round the number to the nearest hundred
289
300
386+145=?
531
94 - 47 = ?
47
Draw an array that shows the following number model.
5 x 3 = 15
x x x x x
x x x x x
x x x x x
2 x 8 = ?
16
700
1,045 + 205 = ?
1,250
159 - 88 = ?
71
Are these arrays equal?
x x x x
x x x x
x x
x x
x x
x x
x x
Yes.
2 x 4 = 8 and 4 x 2 = 8
2 x 40 = ?
80
Round the number to the nearest 10
168
170