Use the numbers 3, - 2, 5, - 6 exactly once and the operations ‘+’, '-', and ‘×’ exactly. Class 7
easy
R
RBSEGuide
Expert Answer
Use the numbers 3, - 2, 5, - 6 exactly once and the operations ‘+’, '-', and ‘×’ exactly. Class 7
Question 1.
Use the numbers 3, - 2,5, - 6 exactly once and the operations ‘+’, '-', and ‘×’ exactly once and brackets as necessary to write an expression such that — Class 7
(a) the result is the maximum possible
(b) the result is the minimum possible
Solution:
(a) 3 × 5 + (-2) - (-6) = 21 maximum.
(b) -6 × 5 + (-2) - 3 = -35 minimum.
Question 2.
Fill in the blanks in at least 5 different ways with integers : Class 7
(a) ________ + ________ × ________ = –36
(b) ( ________ - ________) × ________ = 12
(c) (________ - (________ - ________) = –1
Solution:
(a) -3 + -6 × 4 = -36
(b) (8 - 4) × 3 = 12
(c) (-5 - (-4 - (+8)) = -1
Do as directed. One have been done as an example for you.