Mental Math Addition/Subtraction Flashcards

1
Q

1,500-500=

A

1,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

2,000 + 63=

A

2,063

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

55+ 12=

A

67

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

800- 500=

A

300

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

87-10=

A

77

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

890+ 15=

A

905

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

678+ 23

A

701

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

44+ 55+ 66=

A

110 + 55= 165

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

700-50=

A

650

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

100-50=

A

50

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

430-30=

A

400

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

4,500- 4,000=

A

500

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

82+ 82=

A

164

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

462+ 18=

A

480

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

533+ 421=

A

954

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

999+ 1=

A

1,000

17
Q

988+ 12=

A

1,000

18
Q

455-5=

A

450

19
Q

250+ 350=

A

600

20
Q

730+ 770=

A

1,500

21
Q

445+ 55+ 50=

A

550

22
Q

89 + 11=

A

100

23
Q

9-5=

A

4

24
Q

65+ 35=

A

100

25
Q

80- 20=

A

60