Step-by-step Maths Level 3 Hundreds, tens and ones: check-up and practice test questions

Method. Put the digits in the place value table, then read each column.

1. Write 475 in the place value table. Hundreds, tens and ones each have a column.
   4 | 7 | 5
2. Read each column. The hundreds digit is 4, the tens digit is 7, the ones digit is 5.
   4 hundreds, 7 tens, 5 ones
3. Write the answer. We use the digit in each column.
   4 hundreds, 7 tens and 5 ones

Check. Put them back: 400 + 70 + 5 = 475.

Watch out. A zero digit still has its column. Write 0 tens if there are no tens.

Method. Look at the ones column of the place value table.

1. Write 686 in a place value table. Each digit goes in its own column.
   686 = 6 | 8 | 6
2. Find the ones column. The ones column is the one for ones.
   ones digit = 6
3. Write the digit. This digit is in the right place.
   6

Check. The digits of 686 are 6, 8 and 6.

Watch out. The digit is a single number from 0 to 9. It is not the value in the ones place.

Method. Find the digit, then multiply it by its place value. A tens digit is worth 10.

1. Find the tens digit in 779. The tens digit is in the tens column.
   tens digit = 7
2. Multiply by the place value. Each tens digit stands for 10 at a time in this column.
   7 x 10 = 70
3. Write the answer. This is the value of the digit.
   70

Check. Check the other digits add to the number: 779 = 709 + 70.

Watch out. The value is the digit times the place. It is not just the digit.

Method. Put the digits in the place value table, then read each column.

1. Write 650 in the place value table. Hundreds, tens and ones each have a column.
   6 | 5 | 0
2. Read each column. The hundreds digit is 6, the tens digit is 5, the ones digit is 0.
   6 hundreds, 5 tens, 0 ones
3. Write the answer. We use the digit in each column.
   6 hundreds, 5 tens and 0 ones

Check. Put them back: 600 + 50 + 0 = 650.

Watch out. A zero digit still has its column. Write 0 tens if there are no tens.

Method. Work out the parts we know, then find what is left to make the number.

1. Add the two parts we can see. These parts are already known.
   20 + 4 = 24
2. Take this total away from the number. The missing part is what is left over.
   324 - 24 = 300
3. Write the missing number. It makes the sum equal to the number.
   300

Check. Check: 300 + 20 + 4 = 324.

Watch out. The missing part is the number that makes the total exact.

Method. Find the digit, then multiply it by its place value. A tens digit is worth 10.

1. Find the tens digit in 475. The tens digit is in the tens column.
   tens digit = 7
2. Multiply by the place value. Each tens digit stands for 10 at a time in this column.
   7 x 10 = 70
3. Write the answer. This is the value of the digit.
   70

Check. Check the other digits add to the number: 475 = 405 + 70.

Watch out. The value is the digit times the place. It is not just the digit.

Method. Find the digit, then multiply it by its place value. A ones digit is worth 1.

1. Find the ones digit in 299. The ones digit is in the ones column.
   ones digit = 9
2. Multiply by the place value. Each ones digit stands for 1 at a time in this column.
   9 x 1 = 9
3. Write the answer. This is the value of the digit.
   9

Check. Check the other digits add to the number: 299 = 290 + 9.

Watch out. The value is the digit times the place. It is not just the digit.

Method. The hundreds digit tells us how many whole hundreds there are.

1. Look at the hundreds digit in 468. The hundreds digit tells us how many hundreds.
   The hundreds digit is 4
2. Count the whole hundreds. The tens and ones are not whole hundreds, so we leave them out.
   468 is 4 hundreds and 68 more
3. Write the answer. This is the number of whole hundreds.
   4

Check. 4 hundreds is 400, which is the start of 468.

Watch out. Count the hundreds digit, not the whole number.

Method. Put the digits in the place value table, then read each column.

1. Write 758 in the place value table. Hundreds, tens and ones each have a column.
   7 | 5 | 8
2. Read each column. The hundreds digit is 7, the tens digit is 5, the ones digit is 8.
   7 hundreds, 5 tens, 8 ones
3. Write the answer. We use the digit in each column.
   7 hundreds, 5 tens and 8 ones

Check. Put them back: 700 + 50 + 8 = 758.

Watch out. A zero digit still has its column. Write 0 tens if there are no tens.

Method. Use the hundreds first, then the tens and ones.

1. Find the hundreds word. The number before hundred tells us the hundreds.
   six hundred = 600
2. Find the tens and ones words. Read the words after and.
   three = 3
3. Add them together. The hundreds and the rest make the number.
   600 + 3 = 603
4. Write the answer.
   603

Check. Say it back: 603 is six hundred and three.

Watch out. Hundreds come first. Write the digits in the right columns: hundreds, tens, ones.

Method. The hundreds digit tells us how many whole hundreds there are.

1. Look at the hundreds digit in 255. The hundreds digit tells us how many hundreds.
   The hundreds digit is 2
2. Count the whole hundreds. The tens and ones are not whole hundreds, so we leave them out.
   255 is 2 hundreds and 55 more
3. Write the answer. This is the number of whole hundreds.
   2

Check. 2 hundreds is 200, which is the start of 255.

Watch out. Count the hundreds digit, not the whole number.

Method. The hundreds digit tells us how many whole hundreds there are.

1. Look at the hundreds digit in 784. The hundreds digit tells us how many hundreds.
   The hundreds digit is 7
2. Count the whole hundreds. The tens and ones are not whole hundreds, so we leave them out.
   784 is 7 hundreds and 84 more
3. Write the answer. This is the number of whole hundreds.
   7

Check. 7 hundreds is 700, which is the start of 784.

Watch out. Count the hundreds digit, not the whole number.

Method. Work out the parts we know, then find what is left to make the number.

1. Add the two parts we can see. These parts are already known.
   80 + 9 = 89
2. Take this total away from the number. The missing part is what is left over.
   789 - 89 = 700
3. Write the missing number. It makes the sum equal to the number.
   700

Check. Check: 700 + 80 + 9 = 789.

Watch out. The missing part is the number that makes the total exact.

Method. Split the number by its places, then write each part.

1. Find the hundreds, tens and ones of 915. Read the place value table.
   9 hundreds, 1 tens, 5 ones
2. Write each part as a number. Each part is the digit times its place value.
   900 + 10 + 5
3. Write the answer. The parts add up to the number.
   900 + 10 + 5

Check. Add the parts: 900 + 10 + 5 = 915.

Watch out. Leave out a part that is zero. 204 is 200 + 4.

Method. Count how many hundreds there are, then count ten tens in each.

1. Think of 100 as hundreds. 100 is 1 hundred.
   100 = 1 hundreds
2. Each hundred has ten tens. One hundred is the same as ten tens.
   1 x 10 = 10
3. Write the answer.
   10

Check. Check: 10 tens is 100, because 1 hundreds is 100.

Watch out. One hundred is ten tens. Multiply the hundreds by 10 to find the tens.

Method. Work out the parts we know, then find what is left to make the number.

1. Add the two parts we can see. These parts are already known.
   50 + 8 = 58
2. Take this total away from the number. The missing part is what is left over.
   858 - 58 = 800
3. Write the missing number. It makes the sum equal to the number.
   800

Check. Check: 800 + 50 + 8 = 858.

Watch out. The missing part is the number that makes the total exact.

Method. Put the digits in the place value table, then read each column.

1. Write 526 in the place value table. Hundreds, tens and ones each have a column.
   5 | 2 | 6
2. Read each column. The hundreds digit is 5, the tens digit is 2, the ones digit is 6.
   5 hundreds, 2 tens, 6 ones
3. Write the answer. We use the digit in each column.
   5 hundreds, 2 tens and 6 ones

Check. Put them back: 500 + 20 + 6 = 526.

Watch out. A zero digit still has its column. Write 0 tens if there are no tens.

Method. The hundreds digit tells us how many whole hundreds there are.

1. Look at the hundreds digit in 893. The hundreds digit tells us how many hundreds.
   The hundreds digit is 8
2. Count the whole hundreds. The tens and ones are not whole hundreds, so we leave them out.
   893 is 8 hundreds and 93 more
3. Write the answer. This is the number of whole hundreds.
   8

Check. 8 hundreds is 800, which is the start of 893.

Watch out. Count the hundreds digit, not the whole number.

Method. Use the hundreds first, then the tens and ones.

1. Say the hundreds in words. Hundreds come first.
   222 has 2 hundreds: two hundred
2. Say the tens and ones in words. Say the number after hundred.
   twenty-two
3. Join them with "and". British English puts and before the tens and ones.
   two hundred and twenty-two

Check. Say it back: 222 is two hundred and twenty-two.

Watch out. Write hundred and then and before the tens and ones, like three hundred and seven.

Method. Use the hundreds first, then the tens and ones.

1. Say the hundreds in words. Hundreds come first.
   831 has 8 hundreds: eight hundred
2. Say the tens and ones in words. Say the number after hundred.
   thirty-one
3. Join them with "and". British English puts and before the tens and ones.
   eight hundred and thirty-one

Check. Say it back: 831 is eight hundred and thirty-one.

Watch out. Write hundred and then and before the tens and ones, like three hundred and seven.