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👣 Counting by 2s, 5s, and 10s

Skip count in twos, fives, and tens — the fast way to count shoes, fingers, and dimes without saying every single number.

lessons

~15 min

to learn

🔢 Math

subject

Ages 6–12

level

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What you’ll learn

Counting in 2sSkip count by 2s up to at least 20 and find missing numbers in the pattern.Skip counting by 2s means saying every other number: 2, 4, 6, 8, 10. These are the even numbers, and they make a pattern you can hear. Pairs of things like socks and shoes are perfect for counting in twos.
Counting in 5sSkip count by 5s up to at least 50, landing on numbers ending in 5 or 0.Counting by 5s lands on numbers that end in 5 or 0: 5, 10, 15, 20, 25. Hands make it easy because each hand has five fingers. It is a quick way to count coins like nickels.
Counting in 10sSkip count by 10s, noticing every number ends in 0.Counting by 10s makes the biggest hops: 10, 20, 30, 40, 50. Every count-by-ten number ends in 0. Dimes are worth 10 cents each, so counting dimes is counting by tens.

Questions this course answers

How many dimes make 40 cents if each dime is 10 cents?

10, 20, 30, 40 — that is four hops, so four dimes.

Grounded in trusted sources

PBS Kids — early math
Khan Academy Kids
NAEYC — early math learning
National Council of Teachers of Mathematics (NCTM)

Every Wunder lesson is built from real, reputable sources — never invented.

Related Math courses

🔢Counting by 3s and 10s 🪜Counting by 6s, 7s, and 9s 🧮Counting by 4s, 8s, 50s, and 100s 🔢Counting in Hundredths 🔟Counting in Tenths 🪙Counting Money and Making Change 🧮Counting Objects to 20 ☝️Counting One by One

Wunder is a personalized learn-anything platform — tell it any topic and it builds a beautiful, fact-checked course in minutes, with narration, a knowledge check, and a college-style University track.

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