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Math · Adding and subtracting

Frog Hops: Count on and count back on a number line

A frog hops along a number line of lily pads. Kids count on to add and count back to subtract, first one hop at a time and then in bigger jumps, so adding and subtracting become moves on a number line.

  • GradesKindergarten, 1st grade
  • Levels6, from “Hop forward to 10” to “Jump both ways to 20”
  • A roundAbout 10 questions, a few minutes
  • PriceWith any plan, from $7.99 a month
Try it free for 7 daysSee plans and prices
A round of Frog Hops on a phone

How Frog Hops works

The 6 levels

  1. Hop forward to 10
  2. Hop back to 10
  3. Jump forward to 10
  4. Jump back to 10
  5. Hop both ways to 20
  6. Jump both ways to 20

What it lines up with in school

Common Core State Standards for Mathematics. Standards vary by state, so check with your kid’s teacher.

1.OA.C.5
Connect counting on and counting back to adding and subtracting.
1.OA.C.6
Add and subtract within 20 using strategies like making ten and doubles.

Practice it at home

Questions about Frog Hops

What grade is Frog Hops for?
Kindergarten and 1st grade. It’s a number line game with 6 levels that move up when your kid is ready.
Which standards does Frog Hops cover?
It lines up with Common Core math 1.OA.C.5 and 1.OA.C.6. Standards vary by state, so check with your kid’s teacher for the exact match.
Does my kid need to read to play Frog Hops?
Frog Hops doesn’t read its questions aloud yet. Questions are short and built on pictures and numbers, so most kids in kindergarten and 1st grade can play on their own.
How long is a round of Frog Hops?
About 10 questions, a few minutes. Nine right on the first try and the next round is a level harder; a tough round steps back one.
Is Frog Hops free?
It comes with every plan, from $7.99 a month, with a 7-day free trial. Number Garden and Gator Compare are free.

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