Are you smarter than a 2nd grader?

2nd Grade Add/Subtract

100

10 + 10 =

20

200

24 + 34 =

58

300

72 + 19 = 

91

400

56 + 24 = 

80

500

89 - 34 =

55

2nd Grade Vocabulary

100

What does decompose mean?

Break apart numbers

200

What's the answer to an addition problem called?

The sum.

300

What's the answer to a subtraction problem called?

The difference.

400

What symbol do we use for the unknown?

?

500

Name an addition/subtraction strategy for two digit numbers.

Base-ten, adjust, number line, decompose

2nd gradePlace Value

100

What is the place is the 5 in for this number?

54

Tens

200

What place is the 1 in for this number?

100

Hundreds

300

Write this number in standard form.

300 + 50 + 9 =

359

400

How many tens in 1 hundred?

10

500

Write this number in expanded form.

678

600 + 70 + 8 

2nd GradeCounting

100

10 , 20  , 30 __ , __ , 60

40, 50

200

5, 10 , 15, 20, __, __, 35, 40

25, 30

300

2, 4, 6, __, __, 12, 14 What number is missing?

8, 10

400

98 - 34 = 

64

500

How many ones are in a ten.

10

2nd Grade Measurement

100

13 + 7 = 

20

200

How many inches in 1 foot?

12 inches

300

How many feet in 1 yard?

3 ft.

400

How many inches in 1 yard?

36 inches

500

Find the difference.

92 - 13 = 

79

2nd Grade Even/Odd

100

27 + 3 = 

30

200

Is this number even or odd?

15

ODD

300

Is this number even or odd?

24

Even

400

What is ten more than 56?

66

500

What is ten less than 98?

88