There were 23 3rd graders and 41 4th graders on the playground. How many children were on the playground altogether?
Number Sentence:
Answer:
Number Sentence: 23 + 41 = 64
Answer: 64 children
100
Rule: Add 12
In Out
4
10
45
56
72
Out
16
22
57
68
84
100
42
+ 36
78
200
9+4=
90+40=
900+400=
13
130
1,300
200
49
- 13
50
- 10
40
200
Maria lives 32 blocks from school. Abraham lives 68 blocks from school. How much further is Abraham from school than Maria?
Number Sentence:
Answer:
Number Sentence: 68 - 32 = 36
Answer: 36 blocks
200
Rule: Subtract 50
In Out
150
200
70
100
50
Out
100
150
20
50
0
200
475
+ 23
498
300
14-8=
140-80=
1,400-800=
6
60
600
300
352
+ 359
350 OR 300
+ 360 + 400
710 700
300
Amanda went to the store with $40. She bought a toy that cost $23. How much money does Amanda have left?
Number Sentence:
Answer:
Number Sentence: 40 - 23 = 17
Answer: $17 (dollars)
300
Rule: Add 8
In Out
14
24
44
74
94
In
22
32
52
82
102
300
39
+ 57
96
400
16-3=
160-30=
1,600-300=
13
130
1,300
400
727
- 126
730 OR 700
- 130 - 100
600 600
400
The high temperature on November 1st was 45 degrees. On February 1st, the high temperature was 18 degrees. What is the difference between the two temperatures?
Number Sentence:
Answer:
Number Sentence: 45 - 18 = 27
Answer: 27 degrees
400
Rule: Add 4
In Out
5
13
21
35
58
In Out
9
17
17
31
62
400
591
+ 233
824
500
19-8=
190-80=
1,900-800=
11
110
1,100
500
375
+ 635
380 OR 400
+ 640 + 600
1,020 1,000
500
Taylor read her book for 23 minutes on Monday, 38 minutes on Tuesday, and 50 minutes on Wednesday. How many minutes did she read in all?
Number Sentence:
Answer: