
Use our Interactive Hundreds Chart to address these Common Core Standards 
Grade 
Standard 
1 
Count to 100. In this range, read and write numerals and represent a number of objects with a written numeral. (Standard extends counting to 120.) Use our Interactive Hundreds Chart to address this standard by setting the speech function to ON. As students tap numbers to place markers they will hear the numbers spoken. Practice counting by 2, 3, or 4, and so on. 
2 
Add and Subtract within 20. Assist students in mastering this standard by assigning addition and subtraction problems. Place markers on the Hundreds Chart to show the answers to these problems. Let the answers form a pattern or picture. 

Work with equal groups of objects to gain foundations for multiplication. Practice the multiples of the numbers from 2 to 10 by marking patternso the Hundreds Chart 
3 
Represent and solve problems involving multiplication and division. Pick a composite number from 1 to 100. Ask students to mark a pattern showing the factors of the number. 

Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. Mark a pattern showing the multiples of the two factors, for example, 5 and 7. Notice that 35 is marked in both patterns. (i.e, 5, 10, 15, 20, 25, 30, 35, 40... and ( 7, 14, 21, 28, 35...) 
4 
Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations. 

Find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1–100 is a multiple of a given onedigit number. Determine whether a given whole number in the range 1–100 is prime or composite. Use the Hundreds Chart to demonstrate the Sieve of Eratosthenes. 

Generate a number or shape pattern that follows a given rule. Identify apparent features of the pattern that were not explicit in the rule itself. 
5 
Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. Use the Hundreds Chart to overlay two patterns, for example, 5 and 7. Notice that 35 is the first number that occurs in both patterns. 35 is the LCM of 5 and 7. 