Maths trick
Partitioning
Split numbers into tens and ones, add each part, then put them back together.
Ages 7–10
Worked example
Tap through the steps. Each step can be read aloud.
Step 1 of 4
Split both numbers into tens and ones: 34 = 30 + 4 and 25 = 20 + 5.
Quick practice
Five fresh questions, marked straight away. Use the trick!
Split numbers into tens and ones, add each part, then put them back together.
