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 What is the smallest 4-digit number?
Show worked solution
1 000.
2 Write the smallest 4-digit number and the largest 2-digit number.
Show worked solution
1 000 and 99.
3 What is 1 000 × 99?
Show worked solution
99 000.
Level 2 · Core
4 What is 3 648 000 rounded to the nearest million?
Show worked solution
6 is 5 or more, so round up: 4 000 000.
5 Round 4 762 893 to the nearest million, and then to the nearest hundred thousand.
Show worked solution
5 000 000 and 4 800 000.
6 In the number 40 080, the value of the 4 is how many times the value of the 8?
Show worked solution
500.
Level 3 · Challenge
7 Consider the multiples of 3 up to and including 100.1 There are 33 multiples of 3 up to 100.
2 Four of them are also multiples of 8.
3 25 of them are not multiples of 8.
Which statements are correct?
2 Four of them are also multiples of 8.
3 25 of them are not multiples of 8.
Which statements are correct?
Show worked solution
100 ÷ 3 = 33 r 1 (1 ✓). Multiples of 24 up to 100: 24, 48, 72, 96 — four (2 ✓). So 33 − 4 = 29, not 25 (3 ✗). 1 and 2.
8 Write the largest multiple of 5 under 40, the smallest even multiple of 7, and the difference between them.
Show worked solution
35, 14, and 35 − 14 = 21.
9 How many multiples of 3 up to and including 100 are also multiples of 8?
Show worked solution
24, 48, 72 and 96: 4.