This term we are focusing on reading and writing numbers up to a million.
To understand number, we need to understand the value of each digit.
To do this we use a place value grid and children MUST remember these in order.
|Millions||Hundred thousands||Ten thousands||Thousands||Hundreds||Tens||Ones||decimal point||tenths||hudredths|
In Year 4, children learnt Roman numerals to 100 (C).
This year we are learning Roman numerals to 1,000 (M).
Children MUST learn these by heart to work out the value.
- The Romans were lazy and didn't repeat a letter more than 3 times e.g. III = 3, CCC = 300.
- If a letter is placed after a letter that is worth more, you add the values because it is that many AFTER e.g. XV = 10 + 5 = 15.
- If the letter is before a letter of higher value, you take it away because it is that many BEFORE e.g. IX = 1 before 10 so 10 - 1 = 9. ONLY subtract I, X or C.
We have been learning this rhyme to help us round numbers to the nearest 10, 100 and 1,000.
- Circle the digit that the question asks you to round to nearest.
- Look next door and decide if you need to add 1 more to the digit you circled, OR to let it rest and not change it.
- Write the digits before (if there are any) down as they stay the same.
- Write any digits after as 0's.
You can also check out this rap song
on YouTube at: Rounding numbers rap song