Question

Periodic test-2 (2020-2021)
Maths Class 7
Max Marks. - 40
Time - 80 Minutes
Section A
1X11 = 11
01 Write the following numbers in
i)Standard form
38 thousandth
ii)scientific notation 0.0005412
QZ Write the following in
i)Exponential for
9XaXaXaXbXbXcXc
ii)expanded form
15x®yz
Q3If x=1 and y=2, find the value
2x+3y-7
04 Write the product of the square of 5/9 and the cube of -3/5.
05 Evaluate the following and find its reciprocal
06 What is the degree of the algebraic expression
-9p'q*+p'q+3p'o
07Write the numerical coefficient of each term of the following algebraic
expressions
-3a49ab2-5ab+9
08 Subtract
9a from 11a
09 Verify that y=9 is the solution of the equation +5=8​

Answer 1

1)38000

2)

1)9a³b²c²

Step-by-step explanation:

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