Multiplying by 0.1 is dividing by 10: each digit moves one place right. Dividing by 0.1 is multiplying by 10: each digit moves one place left. 0.01 moves two places.
tenth0.1, one of ten equal parts
hundredth0.01, one of a hundred equal parts
place valuewhat a digit is worth where it sits
decimal pointthe dot between wholes and parts
Watch for: Thinking × 0.1 makes a number bigger. Moving the point the wrong way for ÷ 0.01. Dropping a needed zero: 3 × 0.01 = 0.03, not 0.3.
At home: Talk about dimes and pennies: 0.1 of a dollar and 0.01 of a dollar. What is 0.1 of $25? Of $2.50?
Sample sheet and answer key
Luna's Space Adventure
Grade 5 · Multiplying by 0.1 and 0.01 · MA.5.NSO.2.5
NameDate
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
A dime is $0.1. Dev has 69 dimes. How many dollars is that?
69 × 0.1 = 6.9
6.9dollars
Answer key
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New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.
