Y1: There is no investigative activity for Year 1 in this Unit.
Y2: Dicey Addition
Use dice to generate 2-digit numbers which, when added together, will make the nearest total to 100. Dicey Addition from nrich.maths.org.
Y5: Place value additions and subtraction; add and subtract 0.1 and 0.01 and multiples of 1, 0.1 and 0.01.
Y6: Use place value to add and subtract various combinations of tenths, hundredths and thousandths.
Y5: Multiply and divide by 10 and 100, or by 10, 100 and 1000.
Y6: Multiply and divide masses/weights in kilograms by powers of 10. Identify functions (×/÷ 10, 100 and 100).
In-depth Investigation: Dicey Operations in Line (adapt Game 1)
Create three multiples of 0.01 or 0.1; find their total. Whoever has the sum closest to 1 wins. Dicey Operations in Line (adapt Game 1) from nrich.maths.org.
Y1: Under the Cup
Find 1 more / 1 less than numbers from 1 to 10.
Y2: Sum Patterns
Use pattern and number bonds to derive related additions.
Left or Right?
Multiplying numbers with one decimal place by 10 and dividing 2-digit whole numbers by 10
Left, Left or Right, Right?
Understanding place value in numbers with two decimal places; beginning to multiply numbers with two decimal places by 100 and dividing 3-digit numbers by 100
Deduce the Decimal
Understanding place value in numbers with three decimal places
Multiplying and dividing by 10, 100 and 1000