Slide to convert {{ s1.startVal }} {{ s1.units[s1.startIndex].id }} to {{ s1.units[s1.targetIndex].id }}.
Tap the pump to convert {{ s2.startVal }} {{ s2.startUnit }} to {{ s2.targetUnit }}.
Drag the correct operation to convert {{ s3.inputVal }} {{ s3.inUnit }} to {{ s3.outUnit }}.
Move the decimal to convert {{ s4.startDisplay }} {{ s4.startUnit }} to {{ s4.targetUnit }}.
You've mastered converting metric units by shifting decimals and multiplying by powers of ten!