addition reasoning year 5

Reasoning and problem solvingAddition Year 5

Always When you add tens to any number you only need to change the tens column.

Sometimes When you add tens to any number you sometimes need to change the tens column.

Never When you add tens to any number you never only need to change the tens column.

Sometimes When you add tens to any number you sometimes only need to change the tens column. If the tens total is 9 or less only the tens column will change. e.g 64 + 30 = 94 If the tens total is more than 9 the hundreds column will change to. E.g 53 + 60 = 113

Always If you add to numbers ending with 6 and 8 the answer will always end in 2.

Sometimes If you add to numbers ending with 6 and 8 the answer will sometimes end in 2.

Never If you add to numbers ending with 6 and 8 the answer will never end in 2..

Never If you add to numbers ending with 6 and 8 the answer will never end in 2. 6 ones + 8 ones = 14 ones. In the ones column there will be a 4 and 10 ones will be exchanged for 1 ten.

Where would you start? Ten thousand or ones column.

Where would you start? Ten thousand or ones column.

I disagree If you add two 2-digit whole numbers together the answer can not be a 4 digit number.

I agree If you add two 2-digit whole numbers together the answer can be a 4 digit number.

I disagree If you add two 2-digit whole numbers together the answer can not be a 4 digit number. the largest whole 2 digit number is 99. 99 + 99 = 198 which is a 3 digit number.