Tuesday, 10/4 Homework

• Reading:
• Green:  entry words page
• Pink:  fact/opinion page
• Math:  all:  study vocabulary for quiz on Thursday (see below!)
• Pink:  study the 2's in addition to reviewing the square numbers
• Green:  study the square numbers and do the 5 word problems

• Multiplication Notes

Repeated addition-adding the same number multiple times (5+5+5= 15 means 3 groups of5)

multiplication-putting together equal groups (3X5 = putting together or repeatedly adding by 5 three times to get 15)

array-rows of dots used to represent a number

-remember-rows are horizontal-rows represent the NUMBER of groups. Number of columns (or how many are in that row) represent how many in each group for a # x #set-up

Below is an array for 5 X 4 - 5 rows with 4 in each row

factors-the numbers you multiply together to get a product3x5= 15-->the factors are 3 and 5

product-the answer to a multiplication problem 3x5= 15 -->the product is15

double-multiply a number by two

the commutative property-a rule that says you can multiply numbers in any order and still get the same answer (3x5 yields the same answer as 5X3)

square number-you get this type of number when you multiply a number by itself; the arrays for this type of number are always in the shape of a square (4x4 = 16.16 is a square number. 2x2, 3x3, 4x4 etc. are known as the squares.