ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

Use the direct method to evaluate :
(xy+4) (xy−4)

Use the direct method to evaluate :
(ab+x²) (ab−x²)

Use the direct method to evaluate :
(3x²+5y²) (3x²−5y²)

Use the direct method to evaluate :
`("z"-2/3)("z"+2/3)`

Use the direct method to evaluate :
`(3/5"a"+1/2)(3/5"a"-1/2)`

Use the direct method to evaluate :
(0.5−2a) (0.5+2a)

Use the direct method to evaluate :
`("a"/2-"b"/3)("a"/2+"b"/3)`

Evaluate: `(3"x"+1/2)(2"x"+1/3)`

Evaluate: (2a + 0.5) (7a − 0.3)

Evaluate: (9 − y) (7 + y)

Evaluate: (2 − z) (15 − z)

Evaluate: (4 − ab) (8 + ab)

Evaluate: (5xy − 7) (7xy + 9) 

Evaluate: `(2"x"-3/5)(2"x"+3/5)`

Evaluate: `(4/7"a"+3/4"b")(4/7"a"-3/4"b")`

Evaluate: (6 − 5xy) (6 + 5xy)

Evaluate: `(2"a"+1/"2a")(2"a"-1/"2a")`

Evaluate: (1.6x + 0.7y) (1.6x − 0.7y)

Evaluate: 203 × 197

Evaluate: 20.8 × 19.2