Transcript rounding_and_bounds_starter

© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
175 m
nearest m
174.5 m
175.5 m
45 g
nearest whole number
44.5 g
45.5 g
18 mm
to the nearest mm
17.5 mm 18.5 mm
290 kg
nearest ten
285 kg
295 kg
3300 s
nearest one hundred
3250 s
3350 s
2.3 g
to 1 d.p.
2.25 g
2.35 g
4.08 m
to 2 d.p.
4.075 m
4.085 m
1.234 s
to 3 d.p.
1.2335 s 1.2345 s
10.0 kg
to 1 d.p.
9.95 kg
0.003 g
to 3 d.p.
0.0025 g 0.0035 g
10.05 kg
© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
34.5 cm
34 cm
nearest cm
33.5 cm
56 mm
nearest whole number
55.5 mm 56.5 mm
76 m
to the nearest metre
75.5 m
76.5 m
220 kg
nearest ten
215 kg
225 kg
7800 km
nearest one hundred
7750 km 7850 km
10.8 s
to 1 d.p.
10.75 s
1.77 kg
to 2 d.p.
1.765 kg 1.775 kg
0.456 s
to 3 d.p.
0.4555 s 0.4565 s
305 oz
to the nearest 5 oz
302.5 oz 307.5 oz
602 m
to the nearest 2 metres
601 m
10.85 s
603 m
© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
26 cm
to 2 s.f.
25.5 cm
26.5 cm
870 mm
to 2 s.f.
865 mm
875 mm
315 m
to the nearest five metres 312.5 m
317.5 m
220 kg
nearest ten
215 kg
225 kg
1380 km
to 3 s.f.
1375 km 1385 km
7.6 s
to 1 d.p.
7.55 s
1.17 kg
to 3 s.f.
1.165 kg 1.175 kg
0.024 s
to 2 s.f.
0.0235 s 0.0245 s
12.5 oz
to the nearest ½ oz
12.25 oz 12.75 oz
1.25 m
to the nearest ¼ metre
1.125 m
7.65 s
1.375 m
© T Madas
© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
175 m
nearest m
174.5 m
175.5 m
45 g
nearest whole number
44.5 g
45.5 g
18 mm
to the nearest mm
17.5 mm 18.5 mm
290 kg
nearest ten
285 kg
295 kg
3300 s
nearest one hundred
3250 s
3350 s
2.3 g
to 1 d.p.
2.25 g
2.35 g
4.08 m
to 2 d.p.
4.075 m
4.085 m
1.234 s
to 3 d.p.
1.2335 s 1.2345 s
10.0 kg
to 1 d.p.
9.95 kg
0.003 g
to 3 d.p.
0.0025 g 0.0035 g
10.05 kg
© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
34.5 cm
34 cm
nearest cm
33.5 cm
56 mm
nearest whole number
55.5 mm 56.5 mm
76 m
to the nearest metre
75.5 m
76.5 m
220 kg
nearest ten
215 kg
225 kg
7800 km
nearest one hundred
7750 km 7850 km
10.8 s
to 1 d.p.
10.75 s
1.77 kg
to 2 d.p.
1.765 kg 1.775 kg
0.456 s
to 3 d.p.
0.4555 s 0.4565 s
305 oz
to the nearest 5 oz
302.5 oz 307.5 oz
602 m
to the nearest 2 metres
601 m
10.85 s
603 m
© T Madas
Write the lower & upper bounds for these measurements
Measurement
Accuracy
Lower
Bound
Upper
Bound
26 cm
to 2 s.f.
25.5 cm
26.5 cm
870 mm
to 2 s.f.
865 mm
875 mm
315 m
to the nearest five metres 312.5 m
317.5 m
220 kg
nearest ten
215 kg
225 kg
1380 km
to 3 s.f.
1375 km 1385 km
7.6 s
to 1 d.p.
7.55 s
1.17 kg
to 3 s.f.
1.165 kg 1.175 kg
0.024 s
to 2 s.f.
0.0235 s 0.0245 s
12.5 oz
to the nearest ½ oz
12.25 oz 12.75 oz
1.25 m
to the nearest ¼ metre
1.125 m
7.65 s
1.375 m
© T Madas
© T Madas