Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 1
Q
1
2
Question
Round 36 to 1 s.f.
Round 0.003817 to 1 s.f.
3
4
5
Day 2
Q
1
2
Question
Round 6.8559 to 2 s.f.
Round 1982 to 1 s.f.
Round 9089 to 2 s.f.
Round 563 to 2 s.f.
Round 46 to 1 s.f.
3
4
5
Round 73 to 1 s.f.
Round 0.000264 to 2 s.f.
Round 810 to 1 s.f.
6
Round 1774 to 3 s.f.
6
Round 1.4634 to 1 s.f.
7
Round 9.0154 to 1 s.f.
7
Round 670 to 1 s.f.
8
Round 375 to 1 s.f.
8
Round 276 to 2 s.f.
9
Round 0.7918 to 1 s.f.
9
Round 8.3649 to 3 s.f.
10 Round 0.0475 to 1 s.f.
Day 3
Q Question
1
Round 4.8571 to 2 s.f.
2
Round 0.003818 to 3 s.f.
3
Round 4.874 to 3 s.f.
4
Round 1.4244 to 2 s.f.
5
Round 0.001283 to 3 s.f.
Answer
Answer
10 Round 0.0664 to 2 s.f.
Day 4
Q Question
1
Round 43 to 1 s.f.
2
Round 0.9435 to 3 s.f.
3
Round 0.004378 to 2 s.f.
4
Round 17.986 to 2 s.f.
5
Round 0.003662 to 1 s.f.
6
Round 81 to 1 s.f.
6
Round 0.002193 to 3 s.f.
7
Round 776 to 2 s.f.
7
Round 0.007928 to 1 s.f.
8
Round 39 812 to 3 s.f.
8
Round 64.88 to 3 s.f.
9
Round 1.5469 to 3 s.f.
9
Round 0.4848 to 2 s.f.
10
Round 646 to 2 s.f.
10
Round 441 to 2 s.f.
Answer
Answer
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED
Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 5
Q
1
2
Question
Round 7406 to 3 s.f.
Round 470 to 1 s.f.
3
4
5
Day 6
Q
1
2
Question
Round 209.12 to 3 s.f.
Round 7.192 to 3 s.f.
Round 0.0372 to 1 s.f.
Round 63.0584 to 1 s.f.
Round 23.2001 to 2 s.f.
3
4
5
Round 91.9635 to 3 s.f.
Round 4.955 to 1 s.f.
Round 732 to 1 s.f.
6
Round 809 to 2 s.f.
6
Round 6.506 to 3 s.f.
7
Round 4608 to 3 s.f.
7
Round 4752 to 3 s.f.
8
Round 0.004668 to 1 s.f.
8
Round 5163 to 3 s.f.
9
Round 582 to 2 s.f.
9
Round 3219 to 1 s.f.
10 Round 5.8638 to 3 s.f.
Day 7
Q Question
1
Round 878 to 1 s.f.
2
Round 6.5694 to 1 s.f.
3
Round 0.001304 to 2 s.f.
4
Round 0.001121 to 2 s.f.
5
Round 350 to 1 s.f.
Answer
Answer
10 Round 9.0499 to 2 s.f.
Day 8
Q Question
1
Round 571 to 2 s.f.
2
Round 0.000088 to 1 s.f.
3
Round 5.528 to 2 s.f.
4
Round 0.9817 to 1 s.f.
5
Round 7971 to 1 s.f.
6
Round 863 to 1 s.f.
6
Round 0.3245 to 1 s.f.
7
Round 2.4762 to 3 s.f.
7
Round 0.1368 to 3 s.f.
8
Round 8.0593 to 3 s.f.
8
Round 81.82 to 3 s.f.
9
Round 871 to 2 s.f.
9
Round 61.0772 to 2 s.f.
10
Round 0.9077 to 2 s.f.
10
Round 5882 to 2 s.f.
Answer
Answer
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED
Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 9
Q
1
2
Question
Round 659 to 1 s.f.
Round 0.005109 to 3 s.f.
3
4
5
Day 10
Answer
Q
1
2
Question
Round 8.9032 to 1 s.f.
Round 1.9362 to 1 s.f.
Round 0.508 to 2 s.f.
Round 0.002429 to 2 s.f.
Round 3.1315 to 1 s.f.
3
4
5
Round 37.822 to 3 s.f.
Round 745.2 to 3 s.f.
Round 5739 to 1 s.f.
6
Round 21.5559 to 2 s.f.
6
Round 8760 to 2 s.f.
7
Round 6974 to 3 s.f.
7
Round 3921 to 1 s.f.
8
Round 0.009897 to 1 s.f.
8
Round 0.4116 to 3 s.f.
9
Round 699 to 1 s.f.
9
Round 2.2585 to 1 s.f.
10
Round 8922 to 1 s.f.
10
Round 79 to 1 s.f.
Answer
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED
Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 1
Q
1
2
Question
Round 36 to 1 s.f.
Round 0.003817 to 1 s.f.
3
4
5
Round 9089 to 2 s.f.
Round 563 to 2 s.f.
Round 46 to 1 s.f.
6
Day 2
Answer
Q
1
2
Question
Round 6.8559 to 2 s.f.
Round 1982 to 1 s.f.
50
3
4
5
Round 73 to 1 s.f.
Round 0.000264 to 2 s.f.
Round 810 to 1 s.f.
Round 1774 to 3 s.f.
1770
6
Round 1.4634 to 1 s.f.
1
7
Round 9.0154 to 1 s.f.
9
7
Round 670 to 1 s.f.
700
8
Round 375 to 1 s.f.
400
8
Round 276 to 2 s.f.
280
9
Round 0.7918 to 1 s.f.
0.8
9
Round 8.3649 to 3 s.f.
8.36
10 Round 0.0475 to 1 s.f.
Day 3
Q Question
1
Round 4.8571 to 2 s.f.
2
Round 0.003818 to 3 s.f.
3
Round 4.874 to 3 s.f.
4
Round 1.4244 to 2 s.f.
5
Round 0.001283 to 3 s.f.
0.05
0.066
0.00128
10 Round 0.0664 to 2 s.f.
Day 4
Q Question
1
Round 43 to 1 s.f.
2
Round 0.9435 to 3 s.f.
3
Round 0.004378 to 2 s.f.
4
Round 17.986 to 2 s.f.
5
Round 0.003662 to 1 s.f.
6
Round 81 to 1 s.f.
80
6
Round 0.002193 to 3 s.f.
0.00219
7
Round 776 to 2 s.f.
780
7
Round 0.007928 to 1 s.f.
0.008
8
Round 39 812 to 3 s.f.
39800
8
Round 64.88 to 3 s.f.
64.9
9
Round 1.5469 to 3 s.f.
1.55
9
Round 0.4848 to 2 s.f.
0.48
10
Round 646 to 2 s.f.
650
10
Round 441 to 2 s.f.
440
30
0.004
9100
560
Answer
4.9
0.00382
4.87
1.4
Answer
6.9
2000
70
0.00026
800
Answer
40
0.944
0.0044
18
0.004
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED
Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 5
Q
1
2
Question
Round 7406 to 3 s.f.
Round 470 to 1 s.f.
3
4
5
Round 0.0372 to 1 s.f.
Round 63.0584 to 1 s.f.
Round 23.2001 to 2 s.f.
6
Day 6
Answer
Q
1
2
Question
Round 209.12 to 3 s.f.
Round 7.192 to 3 s.f.
23
3
4
5
Round 91.9635 to 3 s.f.
Round 4.955 to 1 s.f.
Round 732 to 1 s.f.
Round 809 to 2 s.f.
810
6
Round 6.506 to 3 s.f.
6.51
7
Round 4608 to 3 s.f.
4610
7
Round 4752 to 3 s.f.
4750
8
Round 0.004668 to 1 s.f.
0.005
8
Round 5163 to 3 s.f.
5160
9
Round 582 to 2 s.f.
580
9
Round 3219 to 1 s.f.
3000
10 Round 5.8638 to 3 s.f.
Day 7
Q Question
1
Round 878 to 1 s.f.
2
Round 6.5694 to 1 s.f.
3
Round 0.001304 to 2 s.f.
4
Round 0.001121 to 2 s.f.
5
Round 350 to 1 s.f.
5.86
9.0
400
10 Round 9.0499 to 2 s.f.
Day 8
Q Question
1
Round 571 to 2 s.f.
2
Round 0.000088 to 1 s.f.
3
Round 5.528 to 2 s.f.
4
Round 0.9817 to 1 s.f.
5
Round 7971 to 1 s.f.
6
Round 863 to 1 s.f.
900
6
Round 0.3245 to 1 s.f.
0.3
7
Round 2.4762 to 3 s.f.
2.48
7
Round 0.1368 to 3 s.f.
0.137
8
Round 8.0593 to 3 s.f.
8.06
8
Round 81.82 to 3 s.f.
81.8
9
Round 871 to 2 s.f.
870
9
Round 61.0772 to 2 s.f.
61
10
Round 0.9077 to 2 s.f.
0.91
10
Round 5882 to 2 s.f.
5900
7410
500
0.04
60
Answer
900
7
0.0013
0.0011
Answer
209
7.1
92.0
5
700
Answer
570
0.00009
5.5
1
8000
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED
Round to Significant Figures
Key Skills
Complete the daily exercises to focus on improving this skill.
Day 9
Q
1
2
Question
Round 659 to 1 s.f.
Round 0.005109 to 3 s.f.
3
4
5
Round 0.508 to 2 s.f.
Round 0.002429 to 2 s.f.
Round 3.1315 to 1 s.f.
6
Day 10
Answer
Q
1
2
Question
Round 8.9032 to 1 s.f.
Round 1.9362 to 1 s.f.
3
3
4
5
Round 37.822 to 3 s.f.
Round 745.2 to 3 s.f.
Round 5739 to 1 s.f.
Round 21.5559 to 2 s.f.
22
6
Round 8760 to 2 s.f.
8900
7
Round 6974 to 3 s.f.
6970
7
Round 3921 to 1 s.f.
4000
8
Round 0.009897 to 1 s.f.
0.01
8
Round 0.4116 to 3 s.f.
0.415
9
Round 699 to 1 s.f.
700
9
Round 2.2585 to 1 s.f.
2
10
Round 8922 to 1 s.f.
9000
10
Round 79 to 1 s.f.
80
700
0.00511
0.51
0.0024
Answer
9
2
37.8
745
6000
N U M E R A C Y N I N J A S . O R G
©2015 NUMERACY NINJAS. ALL RIGHTS RESERVED