Search Results For “multiply by 10 100 1000”

Knowing pairs of numbers that make 10 and being able to count in tens make these questions much quicker to answer.

Rounding large numbers to the nearest 10000, 1000 and 100.

Rounding the heights of hills and mountains to the nearest 10, 100 and 1000.

Some people (especially those who still use feet and inches!!) think it is important to know how to multiply by 12. It?s easy ? just add 10 times the number to 2 times the number.

How about trying to multiply by 14 or 16 in your head?

Multiply by 5 by multiplying by 10 and halving.

Multiply 3 small numbers using the knowledge that multiplication can be done in any order.

Using the formal written method and squared paper to multiply 4-digit numbers by 2-digit.

Multiply a 2-digit number by 1-digit.

Multiply a 3-digit number by 1-digit.

Multiply a 4-digit number by 1-digit.

Multiply a 4-digit number by a 2-digit number.