Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 Write 250 cents as dollars. (type like $2.50)
Show worked solution
250c is 2 whole dollars and 50 cents: $2.50.
2 Write $3.05 in cents.
Show worked solution
$3 is 300c, plus 5c: 305c.
3 What is $4.50 + $2.25?
Show worked solution
$4 + $2 = $6, and 50c + 25c = 75c: $6.75.
Level 2 · Core
4 What is $10 − $3.65?
Show worked solution
$3.65 + 35c = $4, then $4 + $6 = $10. So 35c + $6 = $6.35.
5 Four friends share $18 equally. How much does each get?
Show worked solution
$18 ÷ 4 = $4.50 each. (4 × $4.50 = $18.)
6 Which is more: $5.40 or 545 cents? (type $5.40 or 545c)
Show worked solution
$5.40 is 540c, and 545c beats it, so 545c is more.
Level 3 · Challenge
7 Three items cost $2.35, $4.80 and $1.95. You pay with a $10 note. What is your change?
Show worked solution
Total: $2.35 + $4.80 + $1.95 = $9.10. Change: $10 − $9.10 = 90c.
8 A pen costs $1.25. How many can you buy with $10, and how much is left over? (type like 8 and $0)
Show worked solution
$1.25 × 8 = $10 exactly, so 8 and $0 left over.
9 You buy 3 drinks at $2.40 each and pay with a $10 note. How much change do you get?
Show worked solution
Drinks: 3 × $2.40 = $7.20. Change: $10 − $7.20 = $2.80.