Numbers

Numbers Worksheet-1

1. The value of (10 ÷ 2) + (20 ÷ 4) + (40 ÷ 8) = 60 ÷ ______

(a) 15                  (b) 12                  (c) 5                    (d) 4

2. The value of 9x² + 9y² – 42xy when x = 15  and y = 3 is

(a) 636               (b) 576               (c) 386               (d) 456

Numbers Worksheet-2

1. If p: when a positive integer and a negative integer are added we always get a negative integer.

q: when two negative integers are added, we get a positive integer, then

(a) Both p and q are true            (b) p is true and q is false

(c) p is false and q is true           (d) Both p and q are false

2. In a magic square each row, column and diagonal have the same sum, then the values of A and B are

(a) –7, –4          (b) –4, –7           (c) –4, –6          (d) –6, –4

Numbers Worksheet-3

1. A place is 45 m above the sea level and another place is 25 m below the sea level. What is the difference of the level between the two places?

(a) 70 m             (b) 20 m            (c) 60 m             (d) –20 m

2. The value of (–2) × 5 × (–3) × (–2) × (–7) is

(a) –420            (b) 420               (c) –210             (d) 210