Mathematics (9-1) - 0980 CIE

Ordering

Gbogbo ọrọ náà

Putting numbers in order sounds simple, but it is where careless mistakes with negatives, fractions and decimals quietly creep in. A clear understanding of size, helped by a number line, lets you order any mix of numbers correctly and use the inequality symbols with confidence.

In this lesson you will order quantities by magnitude and become fluent with the symbols for equals, not equals, greater than, less than, and the two 'or equal to' symbols. These ideas lead straight into inequalities later in the course.

Ebumnobi

Order quantities by magnitude and demonstrate familiarity with the symbols =, ≠, >, <, ⩾ and ⩽.

Akọmọ Ojú-ẹkọ

Comparing sizes correctly underlies inequalities, bounds and reading data. The number line is the picture that makes ordering, especially with negative numbers, reliable.

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Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Ordering. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

Which list is in order from smallest to largest? A. -0.5, -3, 1, 2.5 B. -3, -0.5, 1, 2.5 C. 2.5, 1, -0.5, -3 D. -3, 1, -0.5, 2.5 Answer: B
Which symbol correctly completes -4 __ -1? A. > B. < C. = D. ≥ Answer: B
Which number is the smallest? A. -2 B. -5 C. 0 D. 1 Answer: B
Which of these is the largest? A. 2/3 B. 0.6 C. 60% D. 3/5 Answer: A
The symbol ⩾ means: A. greater than B. less than C. greater than or equal to D. not equal to Answer: C