Estimation
Partial Product
What's My Rule
Add or Subtract
Powers of 10
100
The best estimation number model for 486 plus 732 is what?
500 + 700 = 1,200
100
5 * 57 =
What is 285.
100
In Out 6 30 60 300 700 3,500
Multiply by 5
100
9.6 + 7.3 =
What is 16.9.
100
10 to the second power = ?
What is 100.
200
The best estimation number model for 520 plus 994 plus 273 is what?
500 + 1000 + 300 = 1,800
200
41 * 6 =
What is 246.
200
Your rule is *20. If your "In" is 30 what would your "Out" be?
What is 600.
200
25.8 - 7.9 =
What is 17.9
200
10 to the 3rd power = ?
What is 1,000
300
Estimate whether 74 times 52 would be in the tens, hundreds, thousands or ten thousands.
What is thousands.
300
32 * 7 =
What is 224.
300
If my rule is *20, what would my "In" be if my "Out" was 1,200?
What is 60.
300
52.1 - 24.7 =
What is 27.4.
300
What is the power of 10 (exponential notation) for 10 *10 * 10 * 10?
What is 10 to the fourth power.
400
On average, 11,000 babies are born in the United States each day. About how many babies are born in one week?
77,000 babies
400
25 * 44 =
What is 1,100.
400
My rule is * 70. What would my "In" be if my "Out" was 2,800?
What is 40.
400
143.8 + 65.74 =
What is 209.54
400
What is the exponential notation for 10,000?
What is 10 to the fifth power.
500
On average, 11,000 babies are born in the United States each day. Are more or less than a million babies born in the U.S. in a year? Explain.
More
500
321 * 35 =
What is 11,235.
500
My rule is *70 and my "In" is 700. What would my "Out" be?
What is 49,000
500
525.8 - 499.7 =
What is 26.1
500
What is the exponential notation for one million?
What is 10 to the 6th power.
M
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