Wednesday Partitioning 3 digit numbers Year 3 Spring

Wednesday: Partitioning 3 -digit numbers Year 3, Spring 1

Three-Digit Numbers Stefan picks a number. His number is 346. What is each digit in the number ‘ 346’ worth? Let’s look at the number in a place value chart. Hundreds Tens Ones 3 4 6 In the hundreds column, there is the digit ‘ 3’. This represents 3 hundreds or 300. In the tens column, there is the digit ‘ 4’. This represents 4 tens or 40. In the ones column, there is the digit ‘ 6’. This represents 6 ones or 6. Together, 300 (3 hundreds) + 40 (4 tens) + 6 (6 ones) make 346 = 300 + 40 + 6

Three-Digit Numbers 346 can be represented using base ten blocks. There are 3 hundreds flats. This represents 3 hundreds or 300. There are 4 tens sticks. This represents 4 tens or 40. There are 6 ones cubes. This represents 6 ones or 6. Together, 300 (3 hundreds) + 40 (4 tens) + 6 (6 ones) make 346 = 300 + 40 + 6

Three-Digit Numbers 346 can be represented using place value counters. 100 10 1 1 100 10 10010 1 1 There are 3 hundreds counters. This represents 3 hundreds or 300. There are 4 tens counters. This represents 4 tens or 40. There are 6 ones counters. This represents 6 ones or 6. Together, 300 (3 hundreds) + 40 (4 tens) + 6 (6 ones) make 346 = 300 + 40 + 6

Three-Digit Numbers Let’s look at a different number. Mabel picks a number. Her number is 789. What is each digit in the number ‘ 789’ worth? Let’s look at the number in a place value chart. In the hundreds column, there are 7 counters. This represents 7 hundreds or 700. Hundreds Tens Ones In the tens column, there are 8 counters. This represents 8 tens or 80. In the ones column, there are 9 counters. This represents 9 ones or 9. Together, 700 (7 hundreds) + 80 (8 tens) + 9 (9 ones) make 789 = 700 + 80 + 9

Three-Digit Numbers 789 can be represented using base ten blocks. There are 7 hundreds flats. This represents 7 hundreds or 700. There are 8 tens sticks. This represents 8 tens or 80. There are 9 ones cubes. This represents 9 ones or 9. Together, 700 (7 hundreds) + 80 (8 tens) + 9 (9 ones) make 789.

Three-Digit Numbers 789 can be represented using a part-whole model. 80 is a part. 789 700 is a part. 80 700 9 9 is a part. Together, 700 (7 hundreds) + 80 (8 tens) + 9 (9 ones) make the whole 789 = 80 + 700 + 9

Recognise the Place Value of Each Digit in a Three-Digit Number Split these numbers into hundreds, tens and ones. 208 567 319 200 ? 8 ? 500 ? 300 ? 10 ? 9 ? 60 ? 7?

Recognise the Place Value of Each Digit in a Three-Digit Number Split these numbers into hundreds, tens and ones. 782 999 814 700 ? 80 ? 2 ? 900 ? 800 ? 10 ? 4 ? 90 ? 9 ?

What Am I? Can you find the missing value? 761 60 1 ? What number am I? 700

Maths Practice Questions book page 5 – complete questions 1 and 2 only. Complete the Place Value to 3 digits partitioning sheet.