ICSE Class 7 Mathematics — Flashcards

A: Step 1: One number is positive and the other is negative. Step 2: The product of one positive integer and one negative integer is always negative. Step 3: 5 × 4 = 20, so 5 × (-4) = -20. Answer: -20

A: Step 1: Both integers have the same sign. Step 2: The product of two integers of the same sign is always positive. Step 3: 7 × 6 = 42. Answer: 42

A: Step 1: Count the negative integers. There is 1 negative integer. Step 2: The product of an odd number of negative integers is always negative. Step 3: 3 × 5 × 6 = 90. Step 4: Put the negative sign. A

A: Step 1: Divide 8 by 5. Step 2: 8 ÷ 5 = 8/5. Step 3: 8/5 is a fraction, not an integer. Answer: No, 8 ÷ 5 is not an integer.

A: Step 1: Any integer can be written with denominator 1. Step 2: 5 = 5/1. Answer: 5/1.

A: Step 1: The denominator must be positive. Step 2: 4 is positive. Step 3: 3 and 4 have no common factor other than 1. Answer: Yes, 3/4 is in standard form.

A: Step 1: Total equal parts = 5. Step 2: Parts eaten = 2, so eaten fraction = 2/5. Step 3: Parts left = 5 - 2 = 3. Step 4: Fraction left = 3/5. Answer: 2/5 is eaten and 3/5 is left.

A: Step 1: In a fraction a/b, the top number is the numerator. Step 2: The bottom number is the denominator. Step 3: For 7/9, numerator = 7 and denominator = 9. Answer: Numerator = 7, denominator = 9.

A: Formula: Fraction = Numerator/Denominator. Meaning: Numerator = top number, Denominator = bottom number, and denominator cannot be 0. Quick example: In 3/8, 3 is the numerator and 8 is the denominator