Fix Mistakes
Solve I
Solve II
Solve III
Fix Mistakes II
100

15÷3×(2+5)−6=41

The student mistakenly subtracted 6 from 35 before completing the multiplication. Correct answer 29.

100

6−3×4+2

-4

100

22+3×4

14

100

4+3×(−2)

-2

100

5×23−4+1=35

The student subtracted 4 + 1 instead of subtracting 4 first and then adding 1. Correct answer 37

200

4+3×(5−2)2÷3=15

The student failed to follow the order of operations within the parentheses and exponents, resulting in multiple errors. Correct answer 13. 

200

5+(−3)×6+4

-9

200

5+3×23−4

19

200

7−4×2+(−5)

-6

200

2+5×32−4=437

The student didn’t follow the correct order of operations. They should have Done the exponent first, then multiplied, then added, and finally subtracted. Correct answer 43.

300

(10−6)2÷2×3=-8

The student evaluated the exponent and multiplication incorrectly and skipped using parentheses properly. Correct Answer 24

300

(8−5)×(−2)2−6

6

300

4×(32+5)−24

38

300

6+(−3)2−4×3

-1

300

7×(3+42)−5=32

The student didn’t compute the exponent before multiplying and adding.Correct answer 128.

400

3×23−(8÷2)+5=7

The student incorrectly evaluated the exponent and parentheses. Correct Answer 25

400

−4×(3−7)+23−5

19

400

(23−5)×2+42−7

11

400

-8+(5-3)×(-4)+7

-9

400

6+3×23−8÷2=-318

The student incorrectly subtracted instead of dividing first, following PEMDAS. Correct answer 26. 

500

(6+2)2−3×(4−22)=50

The student incorrectly simplified inside the parentheses and exponent and then subtracted without following the order of operations fully. Correct Answer 64.

500

7−(4+32)×(−2)+5÷(−1)

28

500

33+2×(5−42)+6÷3

7

500

(6−32)×(−2)+8÷(−4)

4

500

(5+3)2−4×2+6=14

 They multiplied 8 times 2 instead of 8Correct answer 62.

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