4.NF.C.5
Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100.* For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.
Tasks
How Many Tenths and Hundredths?
Expanded Fractions and Decimals
Dimes and Pennies
Adding Tenths and Hundredths
Fraction Equivalence