2-Digit Addition
23
+39
62
Ling sees 3 signs at the theater.
Section A: 35 seats
Section B: 43 seats
Section C: 17 seats
Which two sections have 78 seats?
Section A and Section B
35+43=78
2+2
4
What is the value of 7 tens?
70
12
+58
70
Leah puts 21 white marbles, 31 black marbles, and 7 blue marbles in a bag. Then her sister added 19 yellow marbles.
Write a number sentence to show the number of marbles in the bag.
21+31+7+19=78
6+6
12
What is the value of 3 tens and 3 ones?
33
39
+39
78
A. 24+8
B. 24-8
C. 24+6+2
A. 24+8
C. 24+6+2
100+100
200
What is the value of 4 tens and 11 ones?
51
23
51
+39
113
Mr. O'Brien visited a lighthouse. He climbed 26 stairs. Then he climbed 64 more stairs to the top. How many stairs did he climb at the lighthouse?
26
+64
90
200+200
400
What is the value of 1 hundred, 7 tens, and 8 ones
178