22 problems graded by difficulty (★ easy, ★★ medium, ★★★ hard). Try first, without looking at the solutions!
2 What is each digit worth? ★★★
In the number 618, what is the value of each digit: 6, 1 and 8?
3 Write the number ★★★
Write the number: 7 hundreds, 0 tens and 3 ones.
4 Expanded form ★★★
Write 459 in expanded form.
5 From words to digits ★★★
Write the number in digits: five hundred twelve.
6 Count by 10s ★★★
Skip count by 10s and fill in the missing numbers: 130, 140, ___, ___, ___.
7 Write in words ★★★
Write 340 in words.
8 From expanded form ★★★
Write each number in standard form.
- \(600 + 20 + 5\)
- \(900 + 9\)
- \(500 + 70\)
9 Count by 5s ★★★
Skip count by 5s: 275, 280, ___, ___, ___, ___.
10 Count by 100s ★★★
Count by 100s starting at 236. Write the next four numbers.
11 How many tens? ★★★
a) How many tens are in 340?
b) How many tens are in 507, and how many ones are left over?
12 Three ways ★★★
Complete each way to make 413.
- 4 hundreds, 1 ten, 3 ones
- 3 hundreds, ___ tens, 3 ones
- ___ tens, 3 ones
13 True or false? ★★★
Say if each sentence is true or false and explain.
- In 905, there are no tens.
- In 550, the two 5s have the same value.
14 The library boxes ★★★
A school library packs books in boxes of 100, bundles of 10 and single books. It has 6 boxes, 3 bundles and 8 single books. How many books is that?
15 Garden flowers ★★★
A gardener plants flowers in rows of 10. She plants 25 rows. How many flowers is that? Count by 10s to check.
16 Mystery number ★★★
I am a three-digit number. My hundreds digit is 5. My ones digit is 3. My tens digit is twice my ones digit. What number am I?
17 Largest and smallest ★★★
Use each of the digits 4, 0 and 7 exactly once to make a three-digit number. What are the largest and the smallest numbers you can make?
18 Trading blocks ★★★
Mia has 2 flats, 13 rods and 5 cubes.
- What number does she have?
- Trade blocks to show the number with the fewest blocks. How many flats, rods and cubes does she use?
19 Find the mistake ★★★
Leo skip counted by 10s: 670, 680, 690, 800, 810. He made a mistake. Find it and write the correct list.
20 Points on a number line ★★★
The number line goes from 300 to 400, with a mark every 10.
a) What numbers are A, B and C?
b) Which point is closest to 400, and how far away is it?
21 Bags of rolls ★★★
A bakery puts 10 rolls in each bag. It fills 36 bags and has 8 rolls left over. How many rolls does the bakery have? Write the answer in digits and in words.
22 Reaching 1,000 ★★★
a) How many hundreds make 1,000? How many tens make 1,000?
b) What number is 1 more than 999?
c) Count by 100s from 600 to 1,000.
Test yourself: quick challenge for Grade 2
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