More Split Sums
Adding pairs of 2-digit numbers using partitioning
Frog’s Brave Big Jumps
Subtracting pairs of 2-digit numbers with a bigger gap
Frogs Get Fitter
Using counting up (Frog) to subtract pairs of 2-digit numbers
Teach the Frog
Using counting up (Frog) to subtract pairs of 2-digit numbers; Using counting up (Frog) to subtract pairs of 3-digit numbers within the same century
Pairs to 6
Number bonds to 10
Multiples of 10
Next multiple of 10
Y1: Use partitioning to complete addition facts for 7.
Y2: Use number facts to add a 1-digit number to a 2-digit number.
Y1: Draw missing cubes to complete addition facts for 8.
Y2: Use number facts to subtract a 1-digit number from a 2-digit number.
Y1 Partition by colouring snakes or using fingers to complete addition facts for 10.
Y2 Use number facts to add a 1-digit number to a 2-digit number to find the next multiple of 10.
Y1 Match balloons to consolidate number bonds to 10.
Y2 Using beaded lines or a 100-grid, find how many more to the next 10s number.
Add multiples of 10p
Round 3-digit numbers to the nearest 10 or 100
Complements to 100
In-depth Investigation: Hole-y Subtractions
Y3: Children subtract numbers with identical digits from 101, 102, 103 ... and look for patterns in the answers.
Y4: Children create 3-digit palindromic numbers with a ‘hole’ (i.e. a zero) in the middle. They subtract 3-digit numbers with equal numbers of 1s, 10s and 100s and identify patterns.
Y3: Expanded addition for adding pairs of 3-digit numbers: no moving across columns; Begin to move a 10.
Y4: Use written subtraction to subtract 3-digit numbers with expanded decomposition; begin to explore regrouping.
Y3: Expanded addition for adding pairs of 3-digit numbers: move a 10 or a 100.
Y4: Subtract 3-digit numbers using expanded decomposition with one move.
Y3: Expanded addition (to include 1s>10 or 10s >100).
Y4: Use expanded decomposition to solve subtractions.
Y3: Use Frog to subtract numbers between 50 and 100 from a number between 100 and 150.
Y4: Choose whether to use Frog or expanded decomposition to subtract pairs of 3-digit numbers.