Multiply---Divide-by-Powers-of-10---Mini-Whiteboard-Activity.ppt

math activity on multipliing and dividing

1. TEACHERS NOTE:
Click on the question mark, if
required, to show the place value
line. Then click on the individual
blue squares to show the number in
it’s new location after being
multiplied or divided by the power of
10.

2. Grade E
(Level 4 -5)
AIM
To be able to multiply
and divide by different
powers of 10
Multiply & Divide by 10, 100, 1000
Monday, 27 May 2024

3. MINI WHITEBOARD ACTIVITY
•No Graffiti
•No Tags
•No Doodling!
STARTER –Multiply & Divide by 10, 100, 1000

4. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
19
190
19 x 10
190

5. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
37
370
37 x 10
370

6. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
56
5600
56 x 100
5600

7. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
02
200
0.2 x 1000
200

8. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
74
74
7.4 x 10
74

9. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
032
32
0.32 x 10
3.2

10. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
086
86
0.86 x 100
86

11. 8)6.05 x 10
9)1.12 x 100
10)4.133 x 100
11)0.931 x 100
12)26.84 x 10
13)0.7391 x 1000
14)0.951 x 100
1)65 x 100
2)70 x 10
3)90 x 100
4)3.4 x 10
5)357 x 100
6)44.6 x 10
7)34.2 x 1000
MULTIPLY -Classroom Exercise
ThHTU thth
10 min

12. 1)65 x 100
2)70 x 10
3)90 x 100
4)3.4 x 10
5)357 x 100
6)44.6 x 10
7)34.2 x 1000
ANSWERS to Classroom Exercise
= 6500
= 700
= 9000
= 34
= 35700
= 446
= 34200

13. 8)6.05 x 10
9)1.12 x 100
10)4.133 x 100
11)0.931 x 100
12)26.84 x 10
13)0.7391 x 1000
14)0.951 x 100
ANSWERS to Classroom Exercise
= 60.5
= 112
= 413.3
= 93.1
= 268.4
= 739.1
= 95.1

14. MULTIPLICATION EXTENSION
ANSWERS

15. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
639
639
639 ÷10
63.9

16. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
825
825
825 ÷100
8.25

17. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
2437
2437
2437 ÷1000
2.437

18. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
103
0103
10.3 ÷100
0.103

19. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
073
0073
0.73 ÷10
0.073

20. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
008
0008
0.08 ÷10
0.008

21. STARTER –Multiply & Divide by 10, 100, 1000
ThHTU thth
852
0852
85.2 ÷100
0.852

22. DIVIDE -Classroom Exercise
8)6.4 ÷100
9)120 ÷100
10)0.7 ÷10
11)0.91 ÷10
12)68.8 ÷100
13)403 ÷1000
14)71 ÷100
1)653 ÷10
2)702.3 ÷10
3)903 ÷100
4)3401 ÷100
5)57 ÷100
6)4.6 ÷10
7)3.2 ÷100
ThHTU thth
10 min

23. 1)653 ÷10
2)702.3 ÷10
3)903 ÷100
4)3401 ÷100
5)57 ÷100
6)4.6 ÷10
7)3.2 ÷100
ANSWERS to Classroom Exercise
= 65.3
= 70.23
= 9.03
= 34.01
= 0.57
= 0.46
= 0.032

24. 8)6.4 ÷100
9)120 ÷100
10)0.7 ÷10
11)0.91 ÷10
12)68.8 ÷100
13)403 ÷1000
14)71 ÷100
ANSWERS to Classroom Exercise
= 0.064
= 1.2
= 0.07
= 0.091
= 0.688
= 0.403
= 0.71