Mathematical Operations

These questions swap the meaning of the symbols. Rewrite the expression with the real operations first, then apply BODMAS.

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Tap an answer. You'll see if it's right, and why. Easy ones come first.

1. Q1Hard

   If + means −, − means +, × means ÷ and ÷ means ×, find 2 + 20 − 15 ÷ 12.

   1. A156
   2. B162
   3. C174
   4. D130
   Show answer

   Answer: B. 162

   💡 Swap the symbols, then apply BODMAS: the value is 162.

2. Q2Hard

   If + means ÷, − means +, × means − and ÷ means ×, find 6 ÷ 8 ÷ 16 − 3.

   1. A925
   2. B771
   3. C811
   4. D801
   Show answer

   Answer: B. 771

   💡 Swap the symbols, then apply BODMAS: the value is 771.

3. Q3Hard

   If + means −, − means +, × means ÷ and ÷ means ×, find 20 ÷ 9 − 14 ÷ 14.

   1. A376
   2. B2,716
   3. C416
   4. D406
   Show answer

   Answer: A. 376

   💡 Swap the symbols, then apply BODMAS: the value is 376.

4. Q4Hard

   If + means ÷, − means ×, × means + and ÷ means −, find 17 − 4 × 17 × 6.

   1. A99
   2. B100
   3. C111
   4. D91
   Show answer

   Answer: D. 91

   💡 Swap the symbols, then apply BODMAS: the value is 91.

5. Q5Hard

   If + means ×, − means ÷, × means − and ÷ means +, find 6 ÷ 16 ÷ 8 + 20.

   1. A164
   2. B600
   3. C182
   4. D192
   Show answer

   Answer: C. 182

   💡 Swap the symbols, then apply BODMAS: the value is 182.

6. Q6Hard

   If + means ×, − means ÷, × means + and ÷ means −, find 2 ÷ 16 × 20 + 2.

   1. A23
   2. B26
   3. C12
   4. D16
   Show answer

   Answer: B. 26

   💡 Swap the symbols, then apply BODMAS: the value is 26.

7. Q7Hard

   If + means ×, − means +, × means ÷ and ÷ means −, find 6 + 3 − 12 − 7.

   1. A73
   2. B37
   3. C45
   4. D27
   Show answer

   Answer: B. 37

   💡 Swap the symbols, then apply BODMAS: the value is 37.

8. Q8Hard

   If + means ÷, − means ×, × means − and ÷ means +, find 12 − 14 ÷ 20 × 14.

   1. A174
   2. B170
   3. C173
   4. D140
   Show answer

   Answer: A. 174

   💡 Swap the symbols, then apply BODMAS: the value is 174.