Multiplication
Division
Addition/Subtraction
Random!
100
When you multiply decimals you should first ignore the ________ ______?
Decimal Points
100
When you divide decimals you should first move the decimal point in the divisor (the number outside the division bar) to the ______________________?
Far right (just past the ones place)
100
When you add decimals you should first line up the __________ ___________. Then add some ______ if you need them.
Decimal Points
zeros
100
When you subtract decimals you should first line up the ________ _______? Then add some _______ if you need them.
decimal points
zeros
200
After multiplying the two decimals how do you decide how many decimal places the answer will have?
Count up the number of decimal places in the problem.
200
After I move the decimal point in the divisor to the far right (the number outside the division bar), I move the decimal point in the dividend (the number inside the division bar) where? And where do I put the decimal point in the answer?
Move the decimal point in the dividend the same number of places you moved it in the divisor. Then move the decimal point straight up in the quotient/answer spot.
200
5.48 + 92.713
98.193
200
How many quarters are in a dollar?
4
300
We purchased 4 large bags of Snickers. The cost of each bag is $5.47. How much did all the bags cost?
21.88
300
54.76 รท 3.7
14.8
300
0.92 - 0.56
0.36
300
If I have 1 quarter, 1 dime, 1 nickel, and 1 penny - how much money do I have?
$0.41
400
4.07 x 8.6
35.002
400
An airplane flew a total of 7,680 miles. It flew for 12 hours. What was the speed of the plane (miles per hour)?
640 mph
400
81 - 62.4
18.6
400
4 divided by 8/15
15/2 or 7 1/2
500
A train in France can travel at a speed of 217.4 miles per hour. A train in China can travel 1.23 times this speed. How fast can the train in China travel in miles per hour?
267.402 mph
500
Divide 6.48 by .4
16.2
500
Jordyn bought a pair of boots for $64.73. How much change did Jordyn get back if she gave the cashier $80?
$15.27
500
Explain who solved this problem incorrectly and what errors they made.
Carley solved incorrectly. She did not add the 1 when she multiplied 6x3, etc.