Test for Integers class 7th

01. Write the fallowing in usual form

(a) 2×10⁵+5 ×10⁴+ 6×10³+1×10²+ 0×10¹+3×10⁰
(b) 3×10⁶ + 3×10⁵ + 0×10⁴ + 5×10³ + 1×10² + 2×10¹ + 7×10⁰

02. Find The Valu Of
(a) (1/36)³  × (–6)³
(b)  (7⁰ + 5⁰) (8⁰ – 5⁰)
(c) (81)-¹/²  +  (25)¹/²
(d) [(36)¹/²  +  (16)¹/² × 1]²

03. Find The Valu Of
(a) (2p³)³ /3×(p²)³
(b) (2/5)⁵ × (2/5)²
        4/9 × (2/5)³

04. Find the valu of n
(a) 4²ⁿ = 64
(b) 2 ²ⁿ-³  = 64ⁿ
(c) [(–8/3)¹⁰] / [(–8/3)⁴] = (–8/3)²ⁿ+² 

05. which is greater.
(a) (2²)×5 OR (2²)⁵
(b) 8² or 2⁸
(c) If  2^x ×  3^y = 64 × 81 then find the Value of x+y

06. Change 
(a) (2/3)-³ into pasidium exponents
(b) (3²)⁵ into negative exponent.

07. Express each number into the scientific notation or standard form:
(a) 999,000
(b) 9,000,000
(c) 0.0008
(d) 0.000475
(e) 82, 000, 000
(f) 0.0000088

08. Write In Usual Form:
(a) 1.7×10⁴
(b) 4.3×10-³
(c) 9.012 × 10-²
(d) 5.505 × 10³
(e) 4.4 × 10-⁵
(f) 4.4 × 10⁵

10. Compare 
(9) 7.35 × 10³ ..... 7.98x10²
(b) 5.439 ×10⁵ ....... 6.39X10³

11. 
(a) (4³/4³) × [(7-²)/(3-²)] × [(4-²)/(2-³)] × 9/12
(b) Does 3²+3⁵ have the same value as 3²×3⁵?

12. Solve these:
(a) (3/7)³ * (7/3)-⁷ = (3/7)³ⁿ - ²
(b) (5/9)²ⁿ -⁴ × (5/9)⁵ = (5/9)⁹

13. Without ability find which is smallest and which is biggest 
(a) 5⁰, 5³ and 5-⁵ 
(b) 2², 3², 2³ and 3³

14. Evaluate the fallowing.
(a) 5.60 × 10³ +1.33×10⁴
(b) 13.6×10⁷ +3.9×10⁵

Comments

Post a Comment

Popular posts from this blog

CBSE Board Exam 2023 Class 10 ENGLISH (Language and Literature)

Image
Series WYXZ1/4                   Set No. 3 Q.P. Code 2/4/3 Roll No. Candidates must write the Q.P. Code on the title page of the answer-book. ENGLISH (Language and Literature) Time allowed: 3 hours Maximum Marks: 80 Note (I) Please check that this question paper contains 15 printed pages. (II) Q.P. Code given on the right hand side of the question paper should be written on the title page of the answer-book by the candidate. (III) Please check that this question paper contains 11 questions. 39 (IV) Please write down the Serial Number of the question in the answer-book before attempting it. (V) 15 minute time has been allotted to read this question paper. The question paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the question paper only and will not write any answer on the answer-book during this period. General Instructions: Read the instructions very carefully and strictly foll...
Read more

Ganita Prakash Class 8 Chapter 7 Solutions Proportional Reasoning 1

Image
NCERT Class 8 Maths Chapter 7 Proportional Reasoning 1 Solutions Question Answer Ganita Prakash Class 8 Chapter 7 Solutions Proportional Reasoning 1 NCERT Class 8 Maths Ganita Prakash Chapter 7 Proportional Reasoning 1 Solutions Question Answer Example 1. (i) Are the ratios 3 : 4 and 72 : 96 proportional? (ii) What is the HCF of 72 and 96? (Page 162) Solution: (i) HCF of 3 and 4 = 1 ∴ Ratio  3 4  is in its simplest form. HCF of 72 and 96 = 24 (∵ 72 = 24 × 3 and 96 = 24 × 4) ∴  72 96 = 24 × 3 24 × 4 = 3 4 ∴ Ratio  72 96  in its simplest form is  3 4 . ∴ Ratios 3 : 4 and 72 : 96 are proportional, because both ratios in their simplest form are the same. (ii) HCF of 72 and 96 is equal to 24. Example 2. Kesang wanted to make lemonade for a celebration. She made 6 glasses of lemonade in a vessel and added 10 spoons of sugar to the drink. Her father expected more people to join the celebration. So he asked her to make 18 more glasses of lemonade. To make the lemon...
Read more

Class 3rd | हिन्दी | Ch. 14 किसान की होशियारी

Image
Class 3rd | हिन्दी | Ch. 14 किसान की होशियारी  पाठ्यपुस्तक के प्रश्न-अभ्यास (पृष्ठ 116-121) बातचीत के लिए प्रश्न 1. आपको अपनी कौन-कौन सी वस्तुएँ प्रिय हैं? उत्तर- मुझे मेरी खिलौना कार, ड्राइंग बुक, लाइट वाले जूते और बेसन के लड्डू प्रिय हैं। प्रश्न 2. यदि आप भालू के स्थान पर होते तो किसान से क्या कहते? उत्तर-  यदि मैं, भालू के स्थान पर होता तो किसान से कहता कि “मुझे पूरी तैयार फसल का आधा हिस्सा चाहिए।” प्रश्न 3. आप किसान की चतुराई के बारे में क्या सोचते हैं? उत्तर- किसान बहुत चतुर निकला। उसने अपनी जान भी बचाई और साथ ही अपनी मेहनत से उगाई हुई फसलें भी। सोचिए और लिखिए प्रश्न 1. किसान ने भालू से बचने के लिए उससे क्या कहा? उत्तर- किसान ने कहा, “मुझे क्यों मारते हो? उपज होने दो, जो कहोगे, वही खिलाऊँगा।” प्रश्न 2. भालू ने दूसरी बार नीचे की उपज क्यों माँगी? उत्तर- पहली फसल में किसान के हाथ आलू आए और भालू को उसके पत्ते ही खाने को मिले जिससे भालू चिढ़ गया इसीलिए भालू ने दूसरी बार जमीन के नीचे की उपज माँगी। प्रश्न 3. अंत में किसान ने बुद्धिमत्ता कैसे दिखाई? उत्तर- अंतिम बार भ...
Read more