Grade 5 Math · Financial Literacy

Cost of a purchase with HST

Find the total cost of one or more items after adding 13% HST. Unlimited questions, five difficulty levels, and a full worked solution every time, included free with weekly lessons.

Practice this skill Curriculum: G5-F1.2

Try one

Liam buys a board game for $5.50 and a hot chocolate for $2.75. What is the total cost including 13% HST?

Answer: 9.32

See one solved, step by step

Ethan buys a notebook for $4.50 and a pair of mitts for $6.00. What is the total cost including 13% HST?

📘 Worked solution
1$4.50 + $6.00 = $10.50Add up the price of every item to get the subtotal.
213% of $10.50 = 0.13 · $10.50 = $1.37Ontario's HST is 13% of the subtotal.
3$10.50 + $1.37 = $11.87Add the tax to the subtotal to get the total you actually pay.

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