Decimal Grids
Write the Equation for the Decimal Grid on the Powerpoint.
4 x 0.8
Knowing that 3.6 x 10^2 = 360, What is 3.6 x 10^4?
36,000
Use the patterns to solve.
54 x 71 = 3,834
54 x 7.1 = ______
5.4 x 7.1 = ______
383.4
38.34
Use the Powerpoint. Complete the Area Model. You don't need to solve.
240, 48, 21.0, 4.2
Multiply 8 x 2.3
18.4
Write the Equation for the Decimal Grid on the Powerpoint.
0.7 x 0.7 = 0.49
Which of the following are equivalent to:
4.6 x 10^4
a. 4.6 x 10 x 4
b. 4.6 x 10 x 10 x 10 x 10
c. 4,600
d. 46,000
b and d
Zara knows that 46 x 0.78 = 35.88
What does 4.6 x 7.8 equal?
35.88
Solve this problem using an area model.
8.4 x 278
2,335.2
Multiply 7.6 x 4.9
37.24
Solve using a Decimal Grid.
0.4 x 0.8
0.32
According to her step counter, Juila walked 43.8 X 10^3 steps yesterday. How many steps did she walk?
43,800 steps
Kim knows that 3.412 x 93.2 = 317.9984
What does 34.12 x 0.932 equal?
31.79984
Solve this problem using an area model.
42.6 x 8.8
374.88
Multiply 3.74 x 9.2
34.408
Solve using a Decimal Grid.
5 x 0.23
1.15
Solve. 3.257 x 10^7
32,570,000
Keith knows that 8.4 x 91 = 764.4
Tell me if each of these equations are true or false.
84 x 9.1 = 764.4
8.4 x 9.1 = 7.644
0.84 x 9.1 = 76.44
8.4 x 0.91 = 7.644
T
F
F
T
Solve this problem using an area model.
32.56 x 12.91
420.3496
Fred lines up 125 erasers. Each eraser is 9.02 centimeters long. How many centimeters long is Fred's line of erasers?
1,127.50