Using math in storytime always seemed intimidating to me until I attended a STEAM programming seminar. One of the presenters spoke about incorporating math books and activities into storytimes and it was like a revelation to me! Ever since then, I have been keeping my eyes peeled for math picture books which also read aloud well. Many of these titles are new, but quite a few are ones I remember from my childhood. They're all wonderful for reading at storytime or one-on-one. I've marked which age group I've used them on to the most success, but I encourage you to try them all and see for yourself!
Multiplication- PreSchool, School Age
Balance, Size, and Weight- Toddlers
Counting in large quantities and Skip Counting- PreSchool, School Age
Biography and Math in the World- PreSchool, School Age
Geometry- Preschool
Geometry- PreSchool, School Age
Measuring- PreSchool, School Age
Counting & Subtraction- Toddlers, PreSchool
Even and odd numbers- PreSchool, School Age
Counting & Ordinal Numbers- Toddlers, PreSchool
Fractions & Math in the World- PreSchool, School Age
Graphing- PreSchool, School Age
Geometry- PreSchool, School Age
Telling Time- PreSchool, School Age
Skip Counting and Estimation- PreSchool, School Age
Infinity- School Age
Negative Numbers- PreSchool, School Age
Fair Division, PreSchool, School Age
Math in the World- PreSchool, Grade School
Math in the World- PreSchool, School Age
*This author has several others which are equally fun
Measuring- PreSchool, School Age
Multiplication- PreSchool, School Age
Math in the World- PreSchool, School Age
Multiplication- School Age
Division and Skip Counting- PreSchool, School Age
Place Value- School Age
Probability- School Age
Division- School Age
Geometry- School Age
Geometry- School Age
*There are many more in this series
Geometry and Math in the World- School Age
Counting- Toddlers, PreSchool
Addition- PreSchool, School Age
Division- PreSchool, School Age
Skip Counting- PreSchool, School Age
Zero- PreSchool, School Age