Addition and Subtraction of Whole Numbers and Decimals
Multiplying Whole Numbers and Decimals
Number Stories
Chance Events and Reaction Time
Magnitude Estimates
100
Add together the numbers 45+2264
2309
100
Multiply 2.7x3.6 using the method of YOUR CHOICE
9.72
100
Jim and his brother collect baseball cards. Jim has 126 cards. His brother has 164. How many cards do they have altogether?
126+164=b b=number of baseball cards
100
If there is a 30% chance something is going to happen, what CATEGORY is it in on the probability meter?
Unlikely
100
13x26 (Estimate to the nearest tens place)
10x30=300
200
Add together the numbers 235.3+3125
3360.3
200
Multiply 62x17 using the method of YOUR CHOICE
1054
200
Frank bought a hot dog for $4.29 and a drink for $2.37. If he paid with a $20 bill, how much change did he receive?
20.00-4.29-2.37=c c=change
200
What is the percentage for CERTAIN?
100%
200
263x41 (Estimate to the nearest hundreds place for the first number and tens place for the second number)
300x40=12,000
300
Subtract the numbers 3175-452
2723
300
Multiply 21.3x31.2 using LATTICE
664.56
300
After Halloween, Jacob has 42 pieces of candy. His sister, Mandy has 78. How many more pieces does Mandy have than Jacob?
78-42=c c=pieces of candy
300
What is the MEAN reaction time for the following numbers: 18,14,17,15,16?
18+14+17+15+16=80 80 divided by 5 = 16
300
250x401 (Estimate to the nearest hundreds place)
300x400=120,000
400
Subtract the numbers 231.2-145.34
85.86
400
Multiply 16.4x34.5 using LATTICE
565.8
400
Leslie has $43.20. Her sister has $29.38, and her brother has $17.43. How much more money does Leslie have than her sister?
43.20-29.38=m m=money
400
What is the MODE for the following reaction times: 14,16,12,16,13,17,16,15,14
16
400
2.7x6.18
3x6=18
500
Subtract the numbers 231.2-121.235
What is 109.965
500
Multiply 63.4x23.2 using the TRADITIONAL METHOD
1470.88
500
Nick started the day with $23.12. After doing his chores he had $37.67. How much money did Nick make for doing his chores?
37.67-23.12=m m= money
500
How do you figure out the MEDIAN of a set of numbers?
You must put the numbers in order from smallest to largest, and then see which number is in the middle.
500
19.81x15.11
20x15=300
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