- 48

difference

- 50

-10

- 48

-12

- KUKU
- CALCULATOR
- CHALLENGE

Name
Grade
School

Date
Questions10
Score

example

Subtraction

36

- 48

difference

- 48

difference

Estimated Difference

40

- 50

-10

- 50

-10

Actual Difference

36

- 48

-12

- 48

-12

1

Subtraction

92

- 65

difference

- 65

difference

Estimated Difference

Actual Difference

2

Subtraction

61

- 41

difference

- 41

difference

Estimated Difference

Actual Difference

3

Subtraction

67

- 17

difference

- 17

difference

Estimated Difference

Actual Difference

4

Subtraction

91

- 46

difference

- 46

difference

Estimated Difference

Actual Difference

5

Subtraction

92

- 34

difference

- 34

difference

Estimated Difference

Actual Difference

6

Subtraction

72

- 39

difference

- 39

difference

Estimated Difference

Actual Difference

7

Subtraction

58

- 27

difference

- 27

difference

Estimated Difference

Actual Difference

8

Subtraction

71

- 30

difference

- 30

difference

Estimated Difference

Actual Difference

9

Subtraction

61

- 31

difference

- 31

difference

Estimated Difference

Actual Difference

10

Subtraction

72

- 44

difference

- 44

difference

Estimated Difference

Actual Difference

Answers Key

1

Subtraction

92

- 65

difference

- 65

difference

Estimated Difference

90

- 70

20

- 70

20

Actual Difference

92

- 65

27

- 65

27

2

Subtraction

61

- 41

difference

- 41

difference

Estimated Difference

60

- 40

20

- 40

20

Actual Difference

61

- 41

20

- 41

20

3

Subtraction

67

- 17

difference

- 17

difference

Estimated Difference

70

- 20

50

- 20

50

Actual Difference

67

- 17

50

- 17

50

4

Subtraction

91

- 46

difference

- 46

difference

Estimated Difference

90

- 50

40

- 50

40

Actual Difference

91

- 46

45

- 46

45

5

Subtraction

92

- 34

difference

- 34

difference

Estimated Difference

90

- 30

60

- 30

60

Actual Difference

92

- 34

58

- 34

58

6

Subtraction

72

- 39

difference

- 39

difference

Estimated Difference

70

- 40

30

- 40

30

Actual Difference

72

- 39

33

- 39

33

7

Subtraction

58

- 27

difference

- 27

difference

Estimated Difference

60

- 30

30

- 30

30

Actual Difference

58

- 27

31

- 27

31

8

Subtraction

71

- 30

difference

- 30

difference

Estimated Difference

70

- 30

40

- 30

40

Actual Difference

71

- 30

41

- 30

41

9

Subtraction

61

- 31

difference

- 31

difference

Estimated Difference

60

- 30

30

- 30

30

Actual Difference

61

- 31

30

- 31

30

10

Subtraction

72

- 44

difference

- 44

difference

Estimated Difference

70

- 40

30

- 40

30

Actual Difference

72

- 44

28

- 44

28

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kuku

Hey! I'm kuku

I can answer you simple math queries!

Hey! I'm kuku

I can answer you simple math queries!

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