What is move the decimal point according to the number of zeros located in factors.
100
Name the two methods of multiplication that require a rectangle.
What are lattice and array?
100
There were 10 people at my party but I bought supplies for 30. Name my error.
What is overestimation?
100
5 x 5
What is 25?
100
Solve x +8=11.
What is 3?
200
How do you know where to place the decimal when multiplying decimals by decimals?
What is you count the number of decimal places in each factor?
200
Name the five ways to multiply a problem
What are lattice, FOIL, distributive, array and algorithm?
200
Estimate 256 x 45
What is 15,000?
200
4 x 12
What is 48?
200
State the following in an algebraic expression:
an age times 3
What is 3a?
300
Multiply 0.9 x 0.7
What is 0.63?
300
You use this method to break down a number into smaller numbers.
What is the distributive property?
300
You want to buy Ipads as Christmas gifts for your family. Each Ipad cost 254.25 and you want to buy 7. State about how much money you would need.
What is 2100?
300
8 x 7
What is 56?
300
Multiply 1.6 x 0.49
What is 0.784?
400
Multiply 4.02 x 5.3
What is 21.306?
400
Multiply 32 x 43 using the FOIL method.
30 x 40=1200
30 x 3=90
2 x 40=80
2 x 3=6
What is 1376?
400
An overdue charge for a library book is 0.15 a day. The book is 42 years overdue. Estimate the fine for the book.
What is 2400?
400
9 x 8
What is 72?
400
Julia has $0.35 in her wallet. There are no pennies. How many different combinations of coins are possible?
What is six? (1Q, 1D; 1Q, 2N; 3D, 1N; 2D, 3N; 1D, 5N; 7N)
500
Multiply 8.15 x 2.5
What is 20.375?
500
Solve 52 x 35 with the array and algorithm methods.
What is 1820?
500
Marla bought 2.35 pounds of potato salad that cost $4.29 a pound. Find an underestimate and an overestimate to establish a range for the actual cost of the potato salad.