BIDMAS (Part 2) - Worksheets, Questions and Revision

21 original exam-style questions - 5 pages of questions with a full mark scheme - free printable PDF.

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1.10B BIDMAS (Part 2)

EDEXCEL 1MA1 · Calculator allowed · about 50 minutes

Total Marks

Name: _______________________________ Date: ____ / ____ / ______

Answer ALL questions. Show all your working.

Work out 7 + 6 x 2

(Total for Question 1 is 1 mark)

Work out 40 - 5 x 6

(Total for Question 2 is 1 mark)

Work out (11 - 4) x 5

(Total for Question 3 is 1 mark)

Work out 5² - 9

(Total for Question 4 is 1 mark)

Circle the correct value of 15 - 2 x 6

A) 3
B) 78
C) 12
D) -3

(Total for Question 5 is 1 mark)

Work out 9 x (12 - 8)

(Total for Question 6 is 1 mark)

Work out (24 + 16) / 8

(Total for Question 7 is 1 mark)

Insert one of the symbols +, -, x, / into the box to make the calculation correct: 10 [ ] 6 / 2 = 13

(Total for Question 8 is 1 mark)

Work out 4 x 3² - 11

(Total for Question 9 is 2 marks)

Four calculations are shown in the table below.

Letter	Calculation
A	6 + 4 x 3
B	(6 + 4) x 3
C	6 x 4 - 3
D	6 x (4 - 3)

Work out the value of each calculation, then match each letter to its correct value from this list: 6, 18, 21, 30.

(Total for Question 10 is 2 marks)

Work out 63 / (9 - 2) - 5

(Total for Question 11 is 2 marks)

Deepa was asked to work out 20 / 4 x 5. She wrote: 4 x 5 = 20, then 20 / 20 = 1, because she thought multiplication must always be done before division.

(a)Explain the mistake Deepa has made.(1)

(b)Work out the correct answer to 20 / 4 x 5(2)

(Total for Question 12 is 3 marks)

Work out 2⁴ / 4 + 6

(Total for Question 13 is 2 marks)

Work out (16 - 9) x (11 - 5)

(Total for Question 14 is 2 marks)

A market stall sells apples at 35p each and bananas at 20p each. Callum buys 4 apples and 3 bananas. Work out the total cost of Callum's shopping.

(Total for Question 15 is 2 marks)

Work out 5 x 2³ - 40 / 5

(Total for Question 16 is 3 marks)

Work out 5 + 100 / (2 + 3)²

(Total for Question 17 is 3 marks)

Work out 4 x (3 - 8) + 2³

(Total for Question 18 is 3 marks)

Insert one pair of brackets into 12 - 4 x 2 + 6 to make the calculation equal to 22.

(Total for Question 19 is 2 marks)

A car park charges a flat entry fee of 2 pounds plus 3 pounds for every hour of parking.

(a)Write an expression for the total cost, in pounds, of parking for h hours.(1)

(b)Use your expression to work out the total cost of parking for 5 hours.(2)

(Total for Question 20 is 3 marks)

Show that (4 + 2⁴) / 4 x 3 = 15

(Total for Question 21 is 3 marks)

Mark scheme · 1.10B BIDMAS (Part 2)

Question 1

B1 19 cao
Answer: 19

Question 2

B1 10 cao
Answer: 10

Question 3

B1 35 cao
Answer: 35

Question 4

B1 16 cao
Answer: 16

Question 5

B1 A (3) cao
Answer: A) 3

Question 6

B1 36 cao
Answer: 36

Question 7

B1 5 cao
Answer: 5

Question 8

B1 + written, oe
Answer: +

Question 9

M1 3² = 9 seen, or 4 x 9 (= 36) seen
A1 25 cao
Answer: 25

Question 10

B2 all four correctly matched: A = 18, B = 30, C = 21, D = 6, oe
B1 two or three correctly matched, dep on values shown for each calculation
Answer: A = 18, B = 30, C = 21, D = 6

Question 11

M1 9 - 2 = 7 and 63 / 7 = 9 seen
A1 4 cao
Answer: 4

Question 12

(a) B1 correct reference to division and multiplication ranking equally and being carried out in the order they appear, left to right, not multiplication first, oe
(a) Answer: Multiplication and division have equal priority in BIDMAS, so they must be done in the order they appear, left to right; Deepa should have divided 20 by 4 first, not multiplied 4 by 5
(b) M1 20 / 4 (= 5) seen
(b) A1 25 cao
(b) Answer: 25

Question 13

M1 2⁴ = 16 and 16 / 4 = 4 seen
A1 10 cao
Answer: 10

Question 14

M1 16 - 9 = 7 and 11 - 5 = 6 both evaluated
A1 42 cao
Answer: 42

Question 15

M1 4 x 0.35 (= 1.40) and 3 x 0.20 (= 0.60) both seen, or an equivalent method combining the two costs correctly
A1 2 pounds cao (accept 2.00 pounds or 200p, ft from a correct method with one arithmetic slip)
Answer: 2 pounds

Question 16

M1 2³ = 8 and 40 / 5 = 8 both evaluated
M1 5 x 8 (= 40) seen
A1 32 cao
Answer: 32

Question 17

M1 2 + 3 = 5 and 5² = 25 both evaluated
M1 100 / 25 (= 4) seen
A1 9 cao
Answer: 9

Question 18

M1 3 - 8 = -5 evaluated, and 4 x (-5) (= -20) seen
M1 2³ = 8 seen
A1 -12 cao
Answer: -12

Question 19

M1 correct trial of a bracket placement shown, e.g. (12 - 4) x 2 + 6
A1 (12 - 4) x 2 + 6 written, oe, cao
Answer: (12 - 4) x 2 + 6

Question 20

(a) B1 2 + 3h oe
(a) Answer: 2 + 3h
(b) M1 3 x 5 (= 15) seen, or correct substitution of h = 5 into a correct expression (ft from part a)
(b) A1 17 pounds cao
(b) Answer: 17 pounds

Question 21

M1 2⁴ = 16 seen, and 4 + 16 (= 20) seen
M1 20 / 4 (= 5) seen
A1 5 x 3 = 15 shown, cso
Answer: 15 (shown)

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BIDMAS (Part 2) - Worksheets, Questions and Revision

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1.10B BIDMAS (Part 2)

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Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

Question 18

Question 19

Question 20

Question 21

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Question 2

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Question 9

Question 10

Question 11

Question 12

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Question 15

Question 16

Question 17

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Question 20

Question 21