Powers of 10
6 x 103 =
What is 6 x 103 = 6,000
15 x 2 =
What is 30
25 x 25 =
What is 625
140 x 7 =
What is 980
30 x 40 is a __________ estimate for 28 x 37
What is an OVERestimate
104 x _______ = 7,000
What is 104 x 7 = 7,000
25 x 5 =
What is 125
32 x 51 =
What is 1,632
109 x 57 =
What is 6,213
True or False: Estimating is important because it lets us know if our answer is reasonable/makes sense
What is True
101 x 4 =
What is 40
135 x 7 =
What is 945
874 x 39 =
What is 34,086
580 x 10=
What is 5,800
The answer to a multiplication problem is called
What is a product
8 x ________ = 80,000
What is 104 or 10,000
765 x 4 =
What is 3,060
512 x 54 =
What is 27,648
605 x 25
What is 15,125
When using the "box method", the numbers you get in the boxes from multiplying are called ________
What is Partial Products
2 x 105 =
What is 200,000
442 x 3 =
What is 1,326
99 x 89 =
What is 8,811
310 x 12 =
What is 3,720
40 x 20 is an _________ estimate for 43 x 22
What is an UNDERestimate