The point at which the numbers  change into 100s numbers or from one set of hundreds  to another.

When objects or numbers are arranged following a rule. A pattern is a repeated set of numbers, shapes or objects.

Count across and on from 100

Maths

Represent a 3-digit number up to 199 in different ways

Bridge 100 by adding or subtracting a single-digit number

Find 10 more or 10 less than a given number

Cross the hundreds boundary when adding and subtracting any 2-digit multiple of 10

In this unit pupils will find pairs of number that compose 100. Pupils will position 3-digit numbers on a number line and estimate their position on unmarked number lines. They will compare and order 3-digit numbers. In the future unit pupil will add and subtract two 3-digit numbers using partitioning, adjusting, redistribution and bridging. 

In the prior unit pupils used known facts to find multiples of ten that composed 100  and used known facts to find complements to 100. In this unit pupils will find pairs of number that compose 100. They will position 3-digit numbers on a number line and estimate their position on unmarked number lines. They will compare and order 3-digit numbers.

In this unit pupils will find pairs of number that compose 100. They will position 3-digit numbers on a number line and estimate their position on unmarked number lines. They will compare and order 3-digit numbers.

Bridging 100: counting on and back in 10s, adding/subtracting multiples of 10

Spot the pattern. 110, 109, 108, 107, 106

Jacob counts back in 10s: 130, 120, 110, 100. What number would come next? 

Put these numbers in order, starting with the smallest. 

Aisha counts backwards from 105 to 95. Which numbers will she say in her count? 

Jacob counts up in 1s. What number has he missed?

Jacob counts backwards in 1s. 62, 61, 60, 58. What number has he missed? 

Aisha counts in 1s from 50 to 60. Which numbers will be in her count? 

Count across and on from 100

Lesson outcome