GCSE Maths - Foundation Paper 3 Revision

What is 4/5 expressed as a decimal?

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Emily is organizing books in her library and counts 2445 books. She wants to estimate the total to the nearest hundred. How many books does Emily estimate she has?

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

How many minutes are in one quarter of 5 hours?

• 75 minutes

• 60 minutes

• 90 minutes

• 120 minutes

Answer explanation

One quarter of 5 hours is 75 minutes because 5 hours is equal to 300 minutes, and one quarter of that is 75 minutes (300 / 4 = 75).

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CCSS.4.MD.A.1

Simplify the expression: 7c + 5d - 4c + 3d.

• 3c + 8d

• 11c + 2d

• 3c + 2d

• 4c + 9d

Answer explanation

Combine like terms by adding the coefficients of c and d separately: 7c - 4c = 3c, 5d + 3d = 8d. Therefore, the simplified expression is 3c + 8d.

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CCSS.7.EE.A.1

Lin has three cards with numbers 1, 5, and 9. How many different 3-digit numbers greater than 500 can she make using these cards?

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CCSS.4.OA.C.5

Based on the offer "Buy 3 CDs, get 2 free" and each CD costing £4, how many CDs can you get with £60?

• 20 CDs

• 25 CDs

• 15 CDs

• 30 CDs

Answer explanation

With £60, you can buy 15 CDs at £4 each. With the offer, you get 10 CDs free (3 for every 2 bought), totaling 25 CDs.

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CCSS.6.RP.A.3B

In 2022, gas cost 54p per unit and a family used 2457 units. In 2023, the cost increased to 79p per unit and the family used 1966 units. How much more did the family pay for gas in 2023 compared to 2022?

• £226.36

• £426.36

• £316.16

• £221.35

Answer explanation

To find the difference in cost, calculate the total cost for each year (2022: 54p * 2457 units, 2023: 79p * 1966 units) and subtract. The difference is £226.36.

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CCSS.6.NS.B.3

What is 169% of 7800?

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CCSS.6.RP.A.3C

If ( a = 7 ) and ( b = -2 ), what is the product ( ab )?

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CCSS.7.EE.B.3

Given ( a = 7 ) and ( b = -2 ), calculate ( 25b² ).

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CCSS.6.EE.A.2C