Mathematics carries the highest weight in AISSEE — 150 of 300 marks in Class 6 and 200 of 400 marks in Class 9 — and it is also a key section of the RMS CET. Practise these 10 MCQs on Simplification and BODMAS, then check your answers and step-by-step solutions in the answer key at the end.
Quick facts: AISSEE 2027 will be held on Sunday, 31 January 2027. There is no negative marking, so attempt every question. Online applications are open until 2 December 2026 on exams.nta.nic.in/sainik-school-society.
Practice Questions
Q1. Simplify: (9 + 6) × 5 − 5
(A) 70
(B) 34
(C) 0
(D) 75
Q2. Simplify: 1/2 + 1/4 × 4
(A) 3
(B) 19/4
(C) 3/2
(D) 2
Q3. Simplify: (5 + 4) × 5 − 4
(A) 41
(B) 21
(C) 9
(D) 46
Q4. Simplify: 1/3 + 2/5 × 4
(A) 44/15
(B) 71/15
(C) 29/15
(D) 73/30
Q5. What is (−14) + 15 − (−16)?
(A) −15
(B) 17
(C) −29
(D) −17
Q6. Simplify: 9 + 5 × 6 − 5
(A) 34
(B) 79
(C) 14
(D) 39
Q7. Simplify: 1/3 + 1/4 × 2
(A) 7/6
(B) 5/6
(C) 31/12
(D) 4/3
Q8. What is (−8) + 11 − (−12)?
(A) −9
(B) −19
(C) −15
(D) 15
Q9. Simplify: (7 + 6) × 6 − 5
(A) 38
(B) 73
(C) 13
(D) 79
Q10. Simplify: 1/2 + 1/4 × 3
(A) 9/4
(B) 15/4
(C) 7/4
(D) 5/4
Answer Key with Explanations
(A) 70 — Using BODMAS (brackets, division/multiplication, then addition/subtraction), the value is 70.
(C) 3/2 — Multiply first: 1/4×4 = 1; then add 1/2 to get 3/2.
(A) 41 — Using BODMAS (brackets, division/multiplication, then addition/subtraction), the value is 41.
(C) 29/15 — Multiply first: 2/5×4 = 8/5; then add 1/3 to get 29/15.
(B) 17 — Subtracting a negative number means adding: −14 + 15 + 16 = 17.
(A) 34 — Using BODMAS (brackets, division/multiplication, then addition/subtraction), the value is 34.
(B) 5/6 — Multiply first: 1/4×2 = 1/2; then add 1/3 to get 5/6.
(D) 15 — Subtracting a negative number means adding: −8 + 11 + 12 = 15.
(B) 73 — Using BODMAS (brackets, division/multiplication, then addition/subtraction), the value is 73.
(D) 5/4 — Multiply first: 1/4×3 = 3/4; then add 1/2 to get 5/4.
How did you score?
9–10 correct: excellent — move on to a full-length mock test. 6–8: good — revise the explanations of the questions you missed. Below 6: study this topic again from your NCERT book and retry these questions after two days.
Free AISSEE / RMS Mock Test
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