Numbers: Rearrange, Rename, and Order
A Year 2 Mathematics Adventure Learning with Place Value Fun
What is Place Value?
Every digit has a special place Tens place and ones place The position tells us how much the digit is worth Like addresses for numbers!
Place Value Practice
Look at the number 47 Which digit is in the tens place? Which digit is in the ones place? What does each digit represent?
Renaming Numbers
Numbers can have different names 25 = 20 + 5 25 = 2 tens and 5 ones Same number, different ways to say it!
Different Names for 34
{"left":"34\n30 + 4\n3 tens and 4 ones","right":"twenty plus fourteen\n40 - 6"}
Rearranging Numbers
We can swap digits around 23 becomes 32 Same digits, different number Which one is bigger?
Rearrange Challenge
Start with 41 Rearrange to make a new number Which number is larger: 41 or 14? Can you explain why?
Ordering Numbers
Put numbers in order from smallest to largest Look at the tens place first If tens are the same, look at ones 12, 21, 32 - what's the pattern?
Order These Numbers
Can you put these in order? 18, 15, 51, 11 Start with the smallest Which strategy will you use?
Let's Review!
Place value shows where digits live We can rename numbers in different ways Rearranging digits makes new numbers Ordering helps us compare and organize