Decimals Worksheet - Unit 3 Page 11
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38® The Superman Ride of Steel roller coaster is 1.646 km long.
Beth and Ujjal rode this roller coaster 3 times.
How far did Beth and Ujjal travel on the Superman Ride of Steel?
Multiply: 1.646
3
Here are two different strategies students used to calculate 1.646
3.
• Jiri used Base Ten Blocks on a place-value mat.
He modelled 3 groups of 1.646.
Jiri then traded 10 thousandths for 1 hundredth,
10 hundredths for 1 tenth, and 10 tenths for 1 one.
Ones
Tenths
Hundredths Thousandths
1.646
1.646
1.646
Jiri then counted the blocks.
4 ones
9 tenths
3 hundredths
8 thousandths
4.938
So, 1.646
3
4.938
• Hanna used the strategy for multiplying 2 whole numbers,
1646
then estimated to place the decimal point.
3
18
The closest whole-number benchmark to 1.646 is 2.
120
2
3
6
1800
Hanna placed the decimal point in the product so the
3000
whole number part is a number close to 6; that is: 4.938
4938
So, 1.646
3
4.938
Beth and Ujjal travelled 4.938 km on the Superman Ride of Steel.
96
Unit 3 Lesson 3
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education