Decimals

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Decimal Diamonds

Diamond numeracy puzzleWe are looking for your help with this maths activity.

Here is a problem solving puzzle in the form of a Diamond-shaped grid of squares, each square houses a number and the four sides of the Diamond should sum to the same 'magic' total.

The challenge is for the children to use their calculation and problem solving skills to complete the Diamonds by filling in the missing numbers.

  Read more »

Target Number Machine

Maths game boards - addition and subtractionThis makes a great partner starter activity.

The games gives children plentyty of practice in addition and subtraction of two digit numbers, and a simple development means it can also be used to reinforce place value and decimal numbers.

The gameboard features a series of cells representing three two digit numbers: Read more »

Decimal Digit Cards

Decimal Digit CardsThis is in response to a number of requests. A series of 100 digit cards from 0.1 to 10.0. They can be used for all of the usual digit card activities, but here's one quick game idea: Read more »

Decimal Digit Ladder Cards

Digit cards - Decimals for the Ladder Place Value gameHere's a useful set of 42 cards featuring different decimals between 0.02 and 1.81. Sized to suit the Place Value Ladder Boards.

Play the usual Ladder Games with them or let the children select 10 digit cards at random from a face-down pile... then challenge them to put the cards in order, smallest to largest as quickly as possible. Read more »

War with Decimals and Fractions

maths game - fractions and decimalsIt's over twenty-years since I first played this maths game with Primary-age children... but that doesn't stop it being an excellent way for children to develop their understanding of fractions and decimals.

You will need two copies of the cards cut from the downloadable* file. That's 48 cards in total. Read more »

Gattegno Chart

Gattegno place value chartThe Gattegno (or Place Value) Chart is a simple tool to help children appreciate the  patterns in our counting structure. For example, the identical pattern evident when counting in 1’s, 10’s, 100’s, 1000’s... or greater

To familiarise young children with the Gattegno Chart ask them to: Read more »

Decimal Bingo Game

Decimal numbers bingo gameIt's easy for bingo-type games to overtake mathematics... so I tend to avoid them! However, there are exceptions. This one gives children plenty of practice adding decimals and doesn't feel like it relies too much on chance. The children can use a host of mental math strategies while playing (it's not just a 'hunt and cover' game) and the whole thing feels more exciting and logical than most bingo/maths games. Read more »