Count by Tens app for iPhone and iPad

Count by Tens is a teacher/parent guided lesson aligned to standards. Perfect for the classroom or home.

Students will:
• Practice counting by tens from 0- 200 using dimes as a unit of measure
• Add two of dimes to get the sum
• Create their own problems using dimes to count by ten

Lesson includes:
• Two levels of assessment added
• Animated instructional lesson
• Free printable worksheet at appagogy.com


Grade Level(s)
PK K 1 2

Common Core Standards
K.CC.1 Count to 100 by ones and by tens.

K.CC.3 Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).

K.CC.5 Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1 to 20, count out that many objects.

K.CC.4bUnderstand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted.

1.NBT.4 Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

2.NBT.2 Count within 1000; skip-count by 5s, 10s, and 100s.