How can he do it? As students should already be at stage 6 before they attempt such an exercise, this should not cause problems for students, though work with large numbers should be forming part of the teaching. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. AO elaboration and other teaching resources. However, it does require some idea of prime numbers and how these operate. Doubling and halving bingo 23KB. If not, you should register with the link below.

Early Years Activities – Number Age 3 to 5. Bits of Things Age 5 to 7 What happens when you split an object or a few objects into different piles? Multiplication and Division Age 5 to 7 These lower primary tasks will help you to think about multiplication and division. Number Stage 3 Age 7 to 11 Challenge Level: Multiplying and Dividing Age 5 to 7 Try these problems, which are all about multiplying and dividing different numbers.

Bits of Things Age 5 to 7 What happens when you split an object or a few objects into different piles?

## Word problems with doubling and halving

This activity focuses on doubling multiples of five. Double Trouble Age 3 to 5 Doubling numbers.

Asks students to solve problems using doubling and halving. Asks students to solve word problems.

Throw the dice and decide whether to double or halve the number. Question 11 requires students use a mindmap to show their answer. How do you know they are halves?

## Doubling and halving

The first few problems have the box on the right hand side of the equation, and all involve halving to find the number in the box. Addition and Subtraction Age 5 to 7 These lower primary tasks all involve addition, subtraction or both. Follow Up Age 14 to 16 Challenge Level: He’d like to put the same number of plants in each of his gardens, planting one garden each day.

Doubling and halving Keywords: Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! Number Stage 3 Age 7 to 11 Challenge Level: You’ll find money, length and time here.

# Doubling and halving | nzmaths

Try these activities to find out! Multiplying and Dividing Age 5 to 7 Try these problems, which are all about multiplying and dividing different numbers.

If not, you should register with the link below. Geoboards Age 5 to 7 This lower primary feature brings together activities which make use of geoboards. Problems 4 — 6 have the box on the left hand side of the equation, and involve students working in reverse.

Addition and Subtraction KS1 Age 5 to 7 The lower primary tasks in this collection all focus on kz1 and subtracting.

The number of plants in Mr McGregor’s magic potting shed increases overnight. As students should already be at stage 6 before they attempt such an exercise, this should not cause problems for students, though work with large numbers should be forming part of the teaching.

What do you notice about the sum of identical triangle numbers?

# Word problems with doubling and halving

Think Plan Communicate Mathematically Age 5 to Halving Age 5 to 7 Challenge Level: Multiplication and Division KS1 Age 5 to 7 The tasks in this collection encourage lower primary children to look deeper at multiplication and division.

The activity asks students to solve problems, fill in missing numbers in equations using proportional adjustment and solve word problems. Happy Halving Age 5 to 7 Challenge Level: Which of these pocket money systems would you rather have?

Try adding fractions using A4 paper. Triangular numbers can be represented by a triangular array of squares.

Students are also introduced to the concept of proof. Geoboards Age 5 to 11 This feature brings together activities which make use of a geoboard or pegboard. For example, 3 x 16 is the same as 6 x 8. Number Stage 2 Age 5 to 7 Challenge Level: