Test 2: Rounding, Significant Figures, Decimal Places and Standard Form
1. 52 786 correct to 4 significant figures are:
(A) 5 278 (B) 5279
(C) 52 780 (D) 52 790
2. To the nearest hundred, 2754 =
(A) 2700
(B) 2750
(C) 2800
(D) 3000
3. Express in standard form 0.00378.
(A) 3.78 x 10 3
(B) 3.78 x 10 2
(C) 3.78 x 10 -3
(D) 3.78 x 10 -2
4. The BEST estimate of 0.0917 x 42.59 is
(A) 0.04 (B) 0.4 (C) 4
(D) 40
5. Write 4.0756 correct to two decimal places:
(A) 4.75 (B) 4.076 (C) 4.08 (D) 4.76
6. 29.95 x 0.49 is approximately
(A) 0.15 (B) 1.5 (C) 15 (D) 150
7. 4580 written in standard form is:
(A) 4.58 x 103
(B) 45.8 x 102
(C) 0.458 x 104
(D) 458 x 10
8. Write 0.02598 correct to three decimal places:
(A) 0.0259 (B) 0.026 (C) 0.03 (D) 0.025
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Test 2: Rounding, Significant Figures, Decimal Places and Standard Form
9. The number 17.24 x 104 =
(A) 1724 (B) 17 240
(C) 172 400 (D) 1 724 000
10. 0.05265 to three significant figures is:
(A) 0.053 (B) 0.0526 (C) 0.052 (D) 0.0527
© mathministry (M & M)
More Tests? Visit: www.maths123.org
E-mail: [email protected]