Search Results For “multiplying by 10 and 100 word problems”

Revision pages on adding to make multiples of 10 and subtraction of multiples of 10.

Work out the addition questions in your head and just write down the answers.

Revising adding and using the relationship between addition and subtraction.

Mental addition and subtraction using decimals to make a total of 1 or 10.

Applying knowledge to add and subtract decimals mentally.

Adding and subtracting numbers that cross the thousands boundary: often ?counting on? is the best method.

Add twenty and take one is much quicker than trying to add nineteen. But not always!

Use the numbers in the octagon to create and answer subtraction questions using multiples of 10 and decimals.

Doubling 2-digit numbers and halving 3-digit numbers mentally.

Some people like to start doubling with the units, others like to start with the tens. It doesn?t matter as long as the method is fast and accurate.

We return to an important concept again: the relationship between multiplication and division.

Tips and hints on using a calculator, including negative numbers and recurring decimals.