2nd Grade
Add/Subtract
Add/Subtract
10 + 10 =
20
What does decompose mean?
Break apart numbers
What is the place is the 5 in for this number?
54
Tens
10 , 20 , 30 __ , __ , 60
40, 50
13 + 7 =
20
27 + 3 =
30
24 + 34 =
58
What's the answer to an addition problem called?
The sum.
What place is the 1 in for this number?
100
Hundreds
5, 10 , 15, 20, __, __, 35, 40
25, 30
How many inches in 1 foot?
12 inches
Is this number even or odd?
15
ODD
72 + 19 =
What's the answer to a subtraction problem called?
Write this number in standard form.
300 + 50 + 9 =
359
2, 4, 6, __, __, 12, 14 What number is missing?
8, 10
How many feet in 1 yard?
3 ft.
24
Even
56 + 24 =
80
?
How many tens in 1 hundred?
10
98 - 34 =
64
How many inches in 1 yard?
36 inches
What is ten more than 56?
66
89 - 34 =
55
Base-ten, adjust, number line, decompose
Write this number in expanded form.
678
600 + 70 + 8
How many ones are in a ten.
10
92 - 13 =
79
What is ten less than 98?
88