Mathematics (9-1) - 0980 CIE

Powers And Roots

Akopọ

Squaring, cubing and taking roots are among the most-used operations in all of mathematics. They turn up the moment you work with area and volume, and they are the gateway to indices, standard form and Pythagoras' theorem. Being quick and accurate with powers and roots saves time in almost every paper.

In this lesson you will calculate squares, cubes and higher powers, and find square roots, cube roots and other roots, both by recognising common values and by using a calculator efficiently. You will also learn to estimate a root that is not exact, which is a frequent exam check.

Awọn Afojusun

  1. Calculate with the following: squares square roots cubes cube roots other powers and roots of numbers.

Akọ̀wé Ẹ̀kọ́

Powers are a shorthand for repeated multiplication, and roots undo them. Recognising the common squares and cubes on sight, and using the power and root keys on your calculator correctly, removes a whole class of slow, error-prone arithmetic from the rest of the course.

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Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Powers And Roots. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. What is the value of 2^5? A. 10 B. 25 C. 32 D. 64 Answer: C
  2. What is the value of (-3)^2? A. -9 B. -6 C. 6 D. 9 Answer: D
  3. What is the cube root of 125? A. 5 B. 15 C. 25 D. 41.7 Answer: A
  4. Between which two whole numbers does √50 lie? A. 5 and 6 B. 6 and 7 C. 7 and 8 D. 8 and 9 Answer: C
  5. What is the value of 4^3? A. 12 B. 16 C. 43 D. 64 Answer: D

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe

Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Powers And Roots? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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