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In-depth Investigation: Dancing Digits
Children use place value addition and subtraction to write chains which ‘swap’ the 10s and 1s digits.
In-depth Investigation: Pink or Blue?
Children explore the number of quarter past and quarter to times in a day by looking at the two sides of the clock.
In-depth Investigation: Double or Halve
Throw the dice and decide whether to double or halve the number shown. Double or halve? from nrich.maths.org.
In-depth Investigation: Order, Order!
Rank quantities in order from smallest to largest. Order, Order! from nrich.maths.org.
In-depth Investigation: Pyramids
Children explore addition patterns in pyramids. They arrange numbers in a pyramid to create the largest and smallest possible totals.
In-depth Investigation: Clapping Times
If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud? Clapping Times from nrich.maths.org.