Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Curated OER
Count by Tens: Beginning ESL Lesson
Different pictures and illustrations show ESL students the relationship between numbers and their English names (10 and ten, for example). Each slide provides one picture and one number, counting by tens, all the way up to one hundred....
Curated OER
Gattegno Grid
Here is a pdf file containing a Gattegno grid and ideas relating to its use. Try it out for place value, addition, and counting practice.
Curated OER
100 Things
Use this simple, but eye-catching graphic as a sheet on which children can count, sort, and glue or draw 100 objects divided into sets of 10. A handy reproducible for 100th day.
Texas Instruments
Texas Instruments: Food for Thought
In this activity, students learn to count in tens up to 100. They also learn to build 2-digit numbers.
Illustrative Mathematics
Illustrative Mathematics: Counting by Tens
The objective of this lesson is to gain automaticity counting to 100 and to establish the importance of multiples of ten. This activity can be done several times a day as it is quick and requires no materials.
E-learning for Kids
E Learning for Kids: Math: Fisher Boat: Number: Count to 1000 and Money
On this interactive website students practice various math skills using a real life scenario on a fishing boat. Those skills include counting forwards by tens, reading three-digit numbers, and producing a three-digit number using base...
E-learning for Kids
E Learning for Kids: Math: Llama Farm: Addition and Subtraction: Counting Forwards and Backwards
On this interactive site students learn to write 2-digit numbers, count forward and backward by tens and show subtraction facts.
E-learning for Kids
E Learning for Kids: Math: Inca Temple: Number: Count to 100
Inca temples are made up of lots of blocks! Visit Cava and help her count the blocks and arrange them properly. You will practice writing 2-digit numbers, putting a set of 2-digit numbers in order, and counting forwards by tens.
AAA Math
Aaa Math: Counting by Tens
This lesson is about counting by tens from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.