Add Tens Using a
Number Line
Number Line
11 – 9 = _____
2
73 + 21 = _____
94
_____ = 7 + 9
16
42 + 36 = _____
78
30 + 50 = _____
80
35 + 20 = _____
55
24 + 35 = _____
59
You have 56 flowers. 25 of them are pink. The rest are yellow. How many yellow flowers do you have?
21 yellow flowers
32 + 26 = ?
58
56 + 29 = _____
85
42 + 30 = _____
72
41 + 53 = _____
94
62 + 25 = _____
87
16 + 71 = ?
87
17 + 39 = _____
56
13 + 40 = _____
53
57 + 43 = _____
100
34 + 43 = _____
77
34 + 45 = ?
79
_____ = 27 + 49
76
Descartes has 27 trading cards and buys 10 more. Newton has 40 trading cards. Who has more trading cards?
Newton
You do 27 sit-ups on Monday. You do 39 sit-ups on Tuesday. How many more sit-ups do you do on Tuesday?
12 more sit-ups
You see 43 birds. Then you see 31 more. How many birds do you see in all?
74
52 + 23 = ?
75
_____ = 47 + 35
82