Mrs. Rudelich's 2015-16 3rd Grade Class: Week of August 19-21

Sunday, August 16, 2015

Week of August 19-21

Welcome back to school! I am looking forward to a new school year and hope it to be a great one! There won't be any homework this week as we are just getting back to school. We will be starting math and the reading program but won't have any homework for it until the next week.

No comments:

Post a Comment

Topic 2 Math Vocabulary

*addends- numbers added together to give a sum Example: 7+5=12 7 and 5 are addends

*sum-the answer when adding two or more addends Example: 7+5=12 12 is the sum

*Commutative (Order) Property of Addition- numbers can be added in any order and the sum will be the same Example: 5+3=3+5

*Associative (Grouping) Property of Addition-Numbers can be grouped in any way and the sum will be the same. Example: (3+2) + 4= 5+4=9 and 3 + (2+4)= 3+6=9

*Identity (Zero) Property of Addition- the sum of zero and any number is that number. Example: 0+4=4

*difference-The answer when subtracting two numbers Example: 7-2=5 5 is the difference

*fact family- a group of related facts using the same numbers Example: (3,4,7) 3+4=7, 4+3=7, 7-4=3, 7-3=4

*round: to replace a number with another number that tells about many or how much

*estimate- to give a number or answer that tells about how many or how much

*compatible numbers- numbers that are easy to add, subtract, multiply, or divide mentally

*equation- a number sentence that uses an equals sign (=) to show that the value to its left is the same as the value to its right. Example: 6+4=10

Mrs. Rudelich's 2015-16 3rd Grade Class

Sunday, August 16, 2015

Week of August 19-21

No comments:

Post a Comment

Blog Archive

About Me