Class 6 Maths: Framing Algebraic Expressions
Substitute values into the given expressions and find the answers. Click to reveal hints and answers!
Puzzle 1
If x + 6, find the value when x = 1.
Hint: Substitute x = 1 into x + 6.
Answer: 1 + 6 = 7
Puzzle 2
If 3x - 2, find the value when x = 4.
Hint: Substitute x = 4 into 3x - 2.
Answer: 3(4) - 2 = 12 - 2 = 10
Puzzle 3
If 2x + y, find the value when x = 3 and y = 5.
Hint: Substitute x = 3, y = 5 into 2x + y.
Answer: 2(3) + 5 = 6 + 5 = 11
Puzzle 4
If x² - y, find the value when x = 5 and y = 3.
Hint: Substitute x = 5, y = 3 into x² - y.
Answer: 5² - 3 = 25 - 3 = 22
Puzzle 5
If 4x + y², find the value when x = 2 and y = 3.
Hint: Substitute x = 2, y = 3 into 4x + y².
Answer: 4(2) + 3² = 8 + 9 = 17
Puzzle 6
If 2x + 3y - 4, find the value when x = 1 and y = 2.
Hint: Substitute x = 1, y = 2 into 2x + 3y - 4.
Answer: 2(1) + 3(2) - 4 = 2 + 6 - 4 = 4
Puzzle 7
If 5x - y + 6, find the value when x = 3 and y = 4.
Hint: Substitute x = 3, y = 4 into 5x - y + 6.
Answer: 5(3) - 4 + 6 = 15 - 4 + 6 = 17
Puzzle 8
If 3x² + 2y - 1, find the value when x = 2 and y = 1.
Hint: Substitute x = 2, y = 1 into 3x² + 2y - 1.
Answer: 3(2²) + 2(1) - 1 = 3(4) + 2 - 1 = 12 + 2 - 1 = 13
Puzzle 9
If 2x + y² + 3, find the value when x = 4 and y = 2.
Hint: Substitute x = 4, y = 2 into 2x + y² + 3.
Answer: 2(4) + 2² + 3 = 8 + 4 + 3 = 15
Puzzle 10
If x³ + 2y - 5, find the value when x = 2 and y = 3.
Hint: Substitute x = 2, y = 3 into x³ + 2y - 5.
Answer: 2³ + 2(3) - 5 = 8 + 6 - 5 = 9
