Search Results For “prime number”

Subtract money using a number line with New Zealand dollars.

Subtract money using a number line with Euros.

Today we are going to look at a quick way that you can add numbers such as 999 to a 4-digit number.

Today we are going to look at a quick way that you can subtract numbers such as 999 from a 4-digit number.

Add a number near to 1,000 by adjusting.

Subtract a number near 1,000 by adjusting.

Number bonds to 100 using rekenreks.

Number bonds to 100 using base 10.

Today we are going to look at using a number line to help us with subtraction.

Today we are going to look at what number bonds are.

Number tracks up to 50. Landscape.

Number tracks to 50. (Landscape.)