Home/Second Grade Math/Week 1: Numbers to 100/Lesson 6
K-5 friendly lesson
Try one idea, then jump into the activity.These lessons are designed to feel short, friendly, and easy to follow.

Count forward and backward by fives and tens

Skip counting is fast counting. Jump by 5s and 10s forward and backward like a number ninja.

Lesson 6

Concept

Skip count by 10s: 10, 20, 30, 40, ... Skip count by 5s: 5, 10, 15, 20, ... Backward counting means subtracting each jump: 60, 50, 40, 30 ... 45, 40, 35, 30 ... Patterns: - By 10s, ones digit stays the same. - By 5s, ones digit alternates between 5 and 0.

Try it

Complete each sequence: 1. 25, 30, 35, __, __ 2. 80, 70, 60, __, __ 3. 40, 50, 60, __, __ 4. 55, 50, 45, __, __ 5. Start at 15 and count forward by fives to 60.