Number Hop

Choose a skill.

• Count On

  Count on from the frog's spot and land the answer.

  Grade 11.OA.C.5

  Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

• Land on the Number

  Only 0, 50, and 100 are labeled — hop to where the number lives.

  Grade 22.MD.B.6

  Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.

• Add & Subtract Tens

  The frog starts on the first number. Hop to the answer.

  Grade 22.MD.B.6

  Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.

• Skip Counting

  Follow the footprints — by 5s, 10s, or 100s — and land the next one.

  Grade 22.NBT.A.2

  Count within 1000; skip-count by 5s, 10s, and 100s.

• Fractions on the Line

  The line runs from 0 to 1 with nothing in between. Hop to the fraction.

  Grade 33.NF.A.2

  Understand a fraction as a number on the number line; represent fractions on a number line diagram.

• Decimals on the Line

  Tenths sit on the ticks; hundredths live between them.

  Grade 44.NF.C.6

  Use decimal notation for fractions with denominators 10 or 100. For example, rewrite 0.62 as 62/100; describe a length as 0.62 meters; locate 0.62 on a number line diagram.