WorksheetsStandard Form
Total questions: 14
Worksheet time: 7mins
Round off 901 323 correct to three significant figures.
900 000
901 000
901 300
901 320
Express 6.93 x 10-5 as a single number.
0.0693
0.00693
0.000693
0.0000693
4 000 0000.052=
1.3×10−7
1.3 ×10−8
13 ×10−8
13 ×10−7
Express 6 550 000 in standard form.
6.55 ×103
6.55 ×106
6.55 ×10−3
6.55 ×10−6
3.2 ×10−6
3.2 ×10−5
6.89 ×10−5
6.89 ×10−6
Round off 40 104 correct to three significant figures.
40 000
40 100
40 110
40 200
Express 2.202 x 104 as a single number.
2202
22 020
2 202 000
22 020 000
1.3 ×10−3
1.3 ×10−5
8.23 ×10−3
8.23 ×10−5
Round off 0.07207 correct to three significant figures.
0.07
0.072
0.0720
0.0721
Express 0.000806 in standard form.
8.06 ×10−4
8.06 ×10−5
8.06 ×104
8.06 ×105
9.1 ×1011+5.4×1012=
6.31 ×1011
9.64×1011
6.31×1012
9.64×1012
Evaluate
(4.49+1.93)÷75and round off the answer correct to two significant figures.
0.08
0.085
0.086
0.09
Express 0.000414 in standard form.
4.14 ×10−4
4.14 ×10−3
4.14 ×103
4.14 ×104
6.2×1017+3.7×1016=
6.57 ×1016
6.57 ×1017
9.90 ×1016
9.90 ×1017
