Place Value
Adding
Regrouping
100

87

Which number is in the ones place?

7

100

10+12= __

22

100

37+58=__

95

200

54

How many tens are in this number?

5 tens

200

36+22=__

58

200

Explain why the answer is wrong. 

26+38=514

20+30=50

6+8=14

14+50= 514

26+38=64

20+30=50

6+8=14

14+50= 64

300

45

What is the value of the tens place?

40

300

Write a number line for this equation:

35 + 24 =

(number line)

300

Explain why the answer is wrong:

26+48=75

26+48=74

20+40=60

6+8=14

60+14=74

400

49

Li said there are 40 tens in 49. 

Do you agree or disagree? Explain.

There are 4 tens in 49.  

In the number 49, the value of the digit 4 is 40. 

400

You have a penny, nickel, dime, and quarter in your pocket. How much do you have altogether?

41 cents

400

Hannah walked 29 meters to the store from her home. She walked back home the same way. How far did she walk in all?

29+29=58

20+20=40

9+9=18

40+18=58