The gre anlytycal writting section 4 pptx

( + ) ( – ) = – (+)

(–) = –

( – ) ( – ) = + (–)

(–) = +

A simple rule for remembering these patterns is that if the signs are the same when multiplying or divid￾ing, the answer will be positive. If the signs are different, the answer will be negative.

ADDING

Adding two numbers with the same sign results in a sum of the same sign:

( + ) + ( + ) = + and ( – ) + (– ) = –

When adding numbers of different signs, follow this two-step process:

1. Subtract the absolute values of the numbers.

2. Keep the sign of the number with the larger absolute value.

Examples:

–2 + 3 =

Subtract the absolute values of the numbers: 3 – 2 = 1.

The sign of the number with the larger absolute value (3) was originally positive, so the answer is positive.

8 + –11 =

Subtract the absolute values of the numbers: 11 – 8 = 3

The sign of the number with the larger absolute value (11) was originally negative, so the answer is –3.

SUBTRACTING

When subtracting integers, change the subtraction sign to addition and change the sign of the number being

subtracted to its opposite. Then follow the rules for addition.

Examples:

(+10) – (+12) = (+10) + (–12) = –2

(–5) – (–7) = (–5) + (+7) = +2

REMAINDERS

Dividing one integer by another results in a remainder of either zero or a positive integer. For example:

1 R1

–THE GRE QUANTITATIVE SECTION–

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