Addition Adventures!
Master 10 powerful addition techniques — from counting fingers to lightning-fast mental math! 🧠⚡
➕ Addition Techniques Cheat Sheet
Counting OnStart at bigger number, count up
Adding with FingersRaise fingers to track count-on steps
Make a 10Fill to 10 first, add the overflow
Number LineJump forward (+1 and +10 jumps)
DoublesMemorise pairs; near-doubles = double ±1
Split (Place Value)Tens + ones separately, add together
CarryingOnes overflow → carry 1 to tens column
Left-to-RightHundreds first — fastest for mental math
RoundingRound up, add, then subtract the extra
CompensationGive and take between numbers
Column / GroupsFriends-of-10 trick in a list
Positive & NegativeNumbers exist on both sides of zero
Pos + PosSame sign → add, keep sign
Pos + NegTug of war — bigger wins, keep its sign
Neg + NegAdd magnitudes, put minus back
DecimalsLine up the dots, add normally
Decimal + NegLine up dots + tug-of-war rule
Floating PointBinary can't store 0.1 exactly — use round() or int pence
Addition Master! ➕
You've mastered all 12 addition techniques!
You are a true Maths Explorer! 🌟