Welcome to Mrs. Venable's Math Lab Webpage!
Student Resources
For Math Practice or Fun with Math Games, click one of these links:
http://www.rolla.k12.mo.us/schools/wyman_elementary/online_
student_resources/subject_links/math/
http://www.aaamath.com/index.html
The link below gives a glossary of mathmatical terms:
http://www.amathsdictionaryforkids.com
Combinations that Make 10
1 + 9 = 10- 2 + 8 = 10
- 3 + 7 = 10
- 4 + 6 = 10
- 5 + 5 = 10
- 6 + 4 = 10
- 7 + 3 = 10
- 8 + 2 = 10
- 9 + 1 = 10
- 10 + 0 = 10
Doubles
- 1 + 1 = 2
- 2 + 2 = 4
- 3 + 3 = 6
- 4 + 4 = 8
- 5 + 5 = 10
- 6 + 6 = 12
- 7 + 7 = 14
- 8 + 8 = 16
- 9 + 9 = 18
- 10 + 10 = 20
Doubles + 1
- 1 + 2 = 3
- 2 + 3 = 5
- 3 + 4 = 7
- 4 + 5 = 9
- 5 + 6 = 11
- 6 + 7 = 13
- 7 + 8 = 15
- 8 + 9 = 17
- 9 + 10 = 19
- 10 + 11 = 21
Fact Families
Two addition and two subtraction problems.
Same three numbers appear in different places.
In addition problems, the largest number appears last.
Example: 7, 2, and 9
- 7 + 2 = 9
- 2 + 7 = 9
In subtraction problems, the largest number appears first.
- 9 - 2 = 7
- 9 - 7 = 2
Greater Than, Less Than
To know which symbol (< >) to use, put two dots near the larger number and one dot near the smaller number. Then connect the dots.
Numbers that are the same are equal to each other.
Place Value
749,381
Standard Form
Expanded Form
700,000 + 40,000 + 9,000 + 300 + 80 + 1
Word Form
Seven hundred forty-nine thousand, three hundred eighty-one
Value of a Number
The value of a number depends on location. If you have 13,020 and need to know the value of the 3, look for its location. The 3 is in the thousand’s place. The value of the 3 is three thousand.
Example: What is the value of 3?
13,020
Once the number is identified, fill every place to the right with zeros.
The value of 3 is 3,000
Boss Hog 9
Boss Hog 9 takes 1 from the other addend making 10. Add what is left to the 10 to find the sum.
Example: 9 + 6 = ?
9 + 1 = 10
6 - 1 = 5
10 + 5 = 15
