Whole Numbers - JSS3 Mathematics Past Questions and Answers - page 2
11
If the width of a rectangle is 𝑤 and its length is 𝑤+4, what is the area of the rectangle?
A
𝑤^2+2𝑤
B
𝑤^2+3𝑤
C
𝑤^2+4𝑤
D
𝑤^2+5𝑤
correct option: c
Users' Answers & Comments12
Convert the binary number 1101 to its decimal equivalent.
Write down the binary number and its place values:
1101
1×2^3, 1×2^2, 0×2^1, 1×2^0
Calculate the value of each bit:
1×2^3=1×8=8
1×2^2=1×4=4
0×2^1=0×2=0
1×2^0=1×1=1
Add the values together:
8+4+0+1=13
13
Calculate the sum of 34 and 29.
Input the numbers into the calculator:
34+29
Perform the addition:
34+29=63
Answer: The sum of 34 and 29 is 63.