Currency conversion, salaries and wages with overtime and commission, utility and shopping bills, rates and taxes, insurance and investments.
5 narrated scenes. Press play, listen and read along — the points appear as they are explained. Use ‹ Prev / Next › or the scene bar to jump to any scene.
Your first pay slip, your first light bill, your first trip abroad — this is the maths you will actually use every month for the rest of your life.
Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.
Copy these into your notebook in your own words — that is how they stick.
US$ → EC$: multiply by the rate. EC$ → US$: divide. Check the answer is bigger or smaller as expected.
Hourly rate = pay ÷ hours. Overtime: time-and-a-half = 1.5 × hourly; double time = 2 × hourly.
Monthly = annual ÷ 12; weekly = annual ÷ 52.
% of sales; may be added to a basic salary.
Net = gross − deductions (tax, national insurance, pensions).
Total = fixed charge + units × rate (+ tax or fuel charge).
Quantity × unit price → subtotal → discount → tax → total.
Premium = rate × value; dividend = amount per share × shares; return % = gain ÷ invested × 100.
3 quick games on this lesson. Earn XP and badges as you play — your best score for each game is saved. Games are for practice and do not change your exam readiness. More games in the Mathematics Arcade.
8 items modelled on real CSEC Paper 1 questions. Choose one answer for each, then check. Aim for 80% or better. Work each item on paper first.
Write full answers, then reveal the mark scheme and tick the points you earned (17 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [8 marks]
Karen works a basic 40-hour week at $18.00 per hour. Overtime is paid at time-and-a-half. In one week she worked 8 hours overtime.
(a) Calculate her basic weekly wage. [1]
(b) Calculate her overtime pay for the week. [2]
(c) Calculate her gross pay. [1]
(d) Deductions of 22% are made from her gross pay. Calculate her net pay for the week. [2]
(e) Calculate her net pay as a percentage of her basic wage, to 1 decimal place. [2]
Question 2 [9 marks]
A tourist changes US$250 into EC dollars at a rate of US$1 = EC$2.70.
(a) How many EC dollars does the tourist receive? [1]
(b) She buys 3 souvenirs at EC$45.50 each and 2 hats at EC$28.00 each. Calculate the total cost before tax. [3]
(c) A tax of 15% is added. Calculate the amount she pays. [2]
(d) She pays with EC$300. How much change should she get, and what is this in US dollars, to the nearest cent? [3]
Find these in your own past-paper booklets for extra timed practice. Items above are written in the style of these papers; any adapted from a specific question say so.