What is the most important part of 2-digit multiplication?
Captain Zero (placeholder)
100
What is a decimal?
The symbol that separates whole numbers from part of a number.
100
12,346,633.56
What is the value of the 2?
Two Million
100
DAILY DOUBLE!!!!
Sue and Sally each are working on a math problem. Sue's looks like this: 7,980+ 1,234=? and Sally's looks like this: 3,456 x 8,654. They both think their problems are expressions. Who is incorrect? Why?
Sue is incorrect because her problem has an equal sign, therefore making it an equation, not expression.
200
What is the 3rd operation in order of operations?
A: 245x5678
B:24+3
C: 61-51
A: MULTIPLICATION
200
22x14=
308
200
What is the most important thing about adding or subtracting decimals?
Lining up the decimals!
200
123,456,789.0
What is the value of the zero?
Zero Tenths
200
12,947,593,749,473,829,474,739x3,783,787,394,276,252,562,472,487=?
Is this problem an expression or an equation?
It is an equation.
300
DAILY DOUBLE!!!!!!!!
Sally went to Yogli Mogli on Saturday. She bought nine pounds of ice cream. Each pound was worth $1.36. Sally went back on Monday and bought six pounds of ice cream. How much more money did she spend on Saturday than on Monday?
$4.08
300
45x35=?
1,575
300
36.87+87.36=?
124.23
300
9,123,654.678
What is the value of the eight?
Eight Thousandths
300
8,907,654321 x 123,490,5678
Equation or Expression?
Expression!
400
20+(32+36)-2
Solve
86
400
Twelve times eighty-seven equals what?
1,044
400
DAILY DOUBLE!!!!
It was Tanish's birthday, and he got $50.00 from his parents. He was looking in a store, wondering what to buy when TJ robbed him! Later Tanish figured out that TJ stole $43.27 from him because he only had ___________ dollars and cents left. Fill in the blank.
$6.73
400
233,333,666,333,333.45
What is the value of the 2?
Two Trillion!
400
123x456+789-275x1,384
Expression or Equation?
Expression
500
36x(87+23)-156 What operation do you do first?
parentheses (addition) (87+23)
500
89x89=?
7,921
500
76.32-09.45=?
66.87
500
5,476,465,465,453.892
What is the value of the 9?
Nine Hundredths
500
What is the difference between an expression and an equation?
An equation has an equals sign and an expression does not.