Explore 2-Digit Addition
N + 40 = 70
N = 30
17+3=_____
17+3=20
6Tens -1Ten= ______Tens
60-10=________
6Tens-1Ten=5 Tens
60-10=50
31-9
31-9=22
100 - 50 = ?
50
65+3=_____
65+30=_____
65+3=68
65+30=95
49+42=_____
49+42=91
78-3=____
78-30=_______
78-3=75
78-30=48
40-27
40-27=13
77-3
77-3=74
X + 20 = 40
X = 20
23+29=______
23+29=52
y - 15 = 30
45
75-47
75-47=28
Chris bought 45 toys. Matthew the Grinch took 30 of them. How many does Chris have left?
15
13+14
13+14=27
80 + 85 = ?
165
25-16
25-16=9
Cedric has 46 baseball cards. He gives 9 baseball cards to Jasmine. How many baseball cards does Cedric have left?
46-9=37
Y - 20 = 40
Y = 60
Mr. Garvey used 20 hotdog buns and 14 hamburger buns. How many buns did he use in all?
20+14=34
The zookeeper fed 25 baby monkeys. He also fed 12 adult monkeys. How many monkeys did the zookeeper feed?
25+12=37
Mia & Cheyenne are playing with 27 blocks. Mia puts away 9 of the blocks. How many are left?
27-9=18
Brina bakes 36 muffins. She gives 18 of muffins to Carl. How many muffins does Brina have left?
36-18=18
Sandy had 15 toy bugs. Nicky brought 19 more toy bugs to share. How many toy bugs did they have in all?
15+19=34