Vocab
PEMDAS is the same thing as ___________.
inverse multiplication, order of operations, compatible numbers, distributive property
Order of Operations
Estimate to the nearest hundred 287.50 + 184.25 + 95=
=600
300+200+100=600
(84 divided by -4)
-21
What is the Grinch's dogs name?
Max
What does PEMDAS stand for?
Parenthesis
exponents
multiplication
division
add
subtract
Estimate 39(4) + 27(6) + 12 (-4)=
Round 39, 27, and 12 to the nearest tens place
=300
40(4) + 30(6) + 10(-4)
160 + 180 -40= 300
-15-(-7)=
-8
What kind of houses are popular to make and decorate?
Gingerbread Houses
Numbers that are close to the given numbers that make estimation or mental math easier.
inverse multiplication, order of operations, compatible numbers, distributive property
compatible numbers
Estimate to the nearest tens place
47 + 36 +42 + 29+ 39 + 49 +44 + 32=
=320
50+40+40+30+40+50+40+30=
Mr. Ramirez has $1,200 to purchase supplies for the science department. He purchases a set of chemicals that costs $314 and 4 cases of safety glasses. Each case of safety glasses costs $81.50.
Write an expression Mr. Ramirez can use to find the amount of money he has left to purchase microscopes?
1,200 - 314 - (4 x 81.50)
In the song, “12 Days of Christmas,” what kind of tree is the partridge sitting on?
apple tree, orange tree, pear tree, dragon fruit tree, lemon tree
pear tree
Property that states to multiply out the parenthesis first
inverse multiplication, order of operations, compatible numbers, distributive property
Distributive Property
Estimate 210 divided by 5.2 X 9 3/4 + (-205)=
=200
200 divided by 5 X 10 -200=
12(4-2)-6=
=18
12(2)-6
24-6=18
Name ALL of Santa's Reindeer (9)
Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, Blitzen and Rudolph