Basics: Computation & Directed Numbers

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Basic math with directed numbers.

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CHEUK NGA CHEUNG

Hong Kong

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Basics: Computation & Directed Numbers


Basics: Computation & Directed NumbersVersion en ligne Basic math with directed numbers. par CHEUK NGA CHEUNG 1 What is 7 + (-4)? a 4 b 11 c 3 d -1 2 Compute (-6) - (-2). a 4 b -4 c -8 d -2 3 What is 5 - 9? a 9 b 4 c -14 d -4 4 Solve for x: x + 7 = 12. a -5 b 7 c 12 d 5 5 What is (-3) + 5? a 8 b 2 c -2 d 3 6 Compute (-8) - 3. a -13 b -5 c -11 d -3 7 What is 2 - (-5)? a -7 b 3 c 12 d 7 8 Find the value: -15 + (-4). a -19 b -11 c -9 d -19 9 Compute: 3 - (-2). a 2 b 1 c 5 d -5 10 Solve for y: 2y - 4 = 6. a 4 b 2 c 5 d 6 11 If a value x increases by 20% to become y, and y = 144, what is x? a 120 b 96 c 170 d 150 12 A number x decreases by 25% to equal 60. What is x? a 90 b 80 c 45 d 75 13 If x is raised by 10% to give y and y = 110, find x. a 90 b 120 c 100 d 101 14 A value x is multiplied by 1.25 to give y = 75. What is x? a 90 b 65 c 70 d 60 15 If a number x increases by 50% to become 180, what was x? a 150 b 120 c 135 d 90 16 x decreases by 40% to reach 42. What was x? a 63 b 60 c 74 d 70 17 A value x is reduced by 15% to y = 85. What is x? a 100 b 72 c 89 d 92 18 If y = x × 0.9 and y = 72, what's x? a 80 b 90 c 72 d 64 19 A price x rises by 33% to become y = 199. Find x. a 180 b 133 c 150 d 167 20 x is increased by 25% to y = 125. What is x? a 105 b 110 c 100 d 120

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Basics: Computation & Directed Numbers

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Basics: Computation & Directed NumbersVersion en ligne

par CHEUK NGA CHEUNG

What is 7 + (-4)?

Compute (-6) - (-2).

What is 5 - 9?

Solve for x: x + 7 = 12.

What is (-3) + 5?

Compute (-8) - 3.

What is 2 - (-5)?

Find the value: -15 + (-4).

Compute: 3 - (-2).

Solve for y: 2y - 4 = 6.

If a value x increases by 20% to become y, and y = 144, what is x?

A number x decreases by 25% to equal 60. What is x?

If x is raised by 10% to give y and y = 110, find x.

A value x is multiplied by 1.25 to give y = 75. What is x?

If a number x increases by 50% to become 180, what was x?

x decreases by 40% to reach 42. What was x?

A value x is reduced by 15% to y = 85. What is x?

If y = x × 0.9 and y = 72, what's x?

A price x rises by 33% to become y = 199. Find x.

x is increased by 25% to y = 125. What is x?