## Egyptian Fractions - Numeracy Problem

nrich maths
Updated:
2016
1 Comment
Resource
Common Core
<p>The Egyptians expressed all fractions as the sum of different unit fractions. Here is a chance to explore how they could have written...

## Cops and Robbers

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5, MS
Common Core
<p>Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses?</p>Aligned to...

## Three Squares

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5
What is the greatest number of squares you can make by overlapping three squares?

## Rainstorm Sudoku

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• Elementary (Grades 3-5)
Use the clues about the shaded areas to help solve this sudoku.

## Baravelle - Numeracy Problem

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5, MS, HS
Common Core
What can you see? What do you notice? What questions can you ask? Aligned to Common Core State Standard: 4.G.1

## For Richer for Poorer - Numeracy Problem

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• 3-5, MS
Common Core
Charlie has moved between countries and the average income of both has increased. How can this be so? Aligned to Common Core State Standard: 7.SP.4

## Wag Worms - Numeracy Problem

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5
When intergalactic Wag Worms are born they look just like a cube. Each year they grow another cube in any direction. Find all the shapes that five-...

## Remainders - Numeracy Problem

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• 3-5, MS
Common Core
I'm thinking of a number. When my number is divided by 5 the remainder is 4. When my number is divided by 3 the remainder is 2. Can you find my...

## Dominoes Environment - Interactive activity

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5
These interactive dominoes can be dragged around the screen.

## Math Problem - Tea Cups

nrich maths
Updated:
2016
1 Comment
Resource
• Math
• K-2, 3-5
Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the... 