{"id":862,"date":"2023-09-27T08:14:48","date_gmt":"2023-09-27T08:14:48","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=862"},"modified":"2023-09-27T08:19:17","modified_gmt":"2023-09-27T08:19:17","slug":"week-3-jss-2-first-term-mathematics-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-3-jss-2-first-term-mathematics-lesson-notes\/","title":{"rendered":"Week 3 – Jss 2 First Term Mathematics Lesson Notes"},"content":{"rendered":"

WEEK 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR
\n<\/em><\/strong>
\n\u00a0EXAMPLE 1:<\/strong> Find the L C M of 18 and 24
\nSolution:
\n<\/strong>\"\"\/METHOD 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0METHOD 2\u00a0\u00a0\u00a0\u00a0
\n\"\"\/\"\"\/\"\"\/2\u00a0\u00a0\u00a0\u00a018\u00a0\u00a0\u00a0\u00a024\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a018 = 2 \u00d73 \u00d73
\n2\u00a0\u00a0\u00a0\u00a09\u00a0\u00a0\u00a0\u00a012\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a024 = 2 \u00d72 \u00d72 \u00d73
\n2\u00a0\u00a0\u00a0\u00a09\u00a0\u00a0\u00a0\u00a06\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0L C M = 2 \u00d72 \u00d72 \u00d73 \u00d73
\n3\u00a0\u00a0\u00a0\u00a09\u00a0\u00a0\u00a0\u00a03\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0= 72
\n3\u00a0\u00a0\u00a0\u00a03\u00a0\u00a0\u00a0\u00a01
\n\u00a0\u00a0\u00a0\u00a01\u00a0\u00a0\u00a0\u00a01
\nL C M = 2 \u00d7 2 \u00d7 2 \u00d7 3 \u00d7 3 = 72\u00a0\u00a0\u00a0\u00a0<\/p>\n

\u00a0Example 2<\/strong>: Find the L C M of 72 and 90
\nSolution:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n<\/strong>METHOD 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0METHOD 2\u00a0\u00a0\u00a0\u00a0<\/strong>\u00a0\u00a0\u00a0\u00a0
\n\"\"\/\"\"\/\"\"\/2\u00a0\u00a0\u00a0\u00a072\u00a0\u00a0\u00a0\u00a090\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a072 = 2 X 2X 2 X 3 X 3
\n2\u00a0\u00a0\u00a0\u00a036\u00a0\u00a0\u00a0\u00a045\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a090 = 2X 3 X3 X 5
\n2\u00a0\u00a0\u00a0\u00a018\u00a0\u00a0\u00a0\u00a045\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0L C M = 2 X 2 X 2 X 3 X 3 X 5
\n3\u00a0\u00a0\u00a0\u00a09\u00a0\u00a0\u00a0\u00a045\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0= 360
\n3\u00a0\u00a0\u00a0\u00a03\u00a0\u00a0\u00a0\u00a015
\n5\u00a0\u00a0\u00a0\u00a01\u00a0\u00a0\u00a0\u00a05
\n \u00a0\u00a0\u00a0\u00a01\u00a0\u00a0\u00a0\u00a01
\n2 x 2 x 2 x3 x 3 x 5 = 360<\/p>\n

\u00a0Example 3<\/strong>: Find the H C F of 72 and 96
\nSolution: find the prime product of the number and pick the common ones
\n72 = 2 * 2 * 2 * 3 * 3
\n96 = 2 * 2 * 2 * 2 * 2 * 3
\nH C F = 2 * 2 * 2 * 3
\n = 24<\/p>\n

\u00a0SQUARE AND SQUARE ROOT
\n<\/strong>
\n\u00a0“Square” is the product of two equal terms example N * N = N\u00b2
\nExample 1<\/strong>: Find the square of 14 and 21
\nSolution:
\n<\/strong>14 * 14 = 196 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(b) 21 * 21 = 441.
\nSquare Root: A number that when multiply by itself equals a given number.
\nExample 2<\/strong>: find the square root of 144
\nSolution:
\n<\/strong>Using a prime factor method (method 1)\u00a0\u00a0\u00a0\u00a0Factor pairs method (method 2)
\n\"\"\/\"\"\/2\u00a0\u00a0\u00a0\u00a0144\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0144 = 1 *144
\n2\u00a0\u00a0\u00a0\u00a072\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 2 * 72
\n2\u00a0\u00a0\u00a0\u00a036\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 3 * 48
\n2\u00a0\u00a0\u00a0\u00a018\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 4 * 36
\n3\u00a0\u00a0\u00a0\u00a09\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 6 * 24
\n3\u00a0\u00a0\u00a0\u00a03\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 8 * 18
\n\u00a0\u00a0\u00a0\u00a01 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = 9 * 16
\nTherefore (2 * 2) * (2 * 2) * (3 * 3) = 2* 2 * 3 = 12 \u00a0\u00a0\u00a0\u00a0 = 12 x 12
\nASSESEMENT
\n<\/strong><\/p>\n

    \n
  1. \n
    Find the square of the following (a) 25, (b) 40 and (c) 132\n<\/div>\n<\/li>\n
  2. \n
    Find the square root of the following (a) 6400 (b) 16900 (c) 1296\n<\/div>\n<\/li>\n<\/ol>\n

    \u00a0Assignment: essential mathematics text book for J SS 2 PAGE 10 EXERCISE 1.6 NO 2 (e, f) , NO 6 (b, c)
    \n<\/em>
    \n\t\t\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

    WEEK 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR \u00a0EXAMPLE 1: Find the L C M…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,95],"tags":[],"class_list":["post-862","post","type-post","status-publish","format-standard","hentry","category-posts","category-first-term-jss-2-mathematics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=862"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/862\/revisions"}],"predecessor-version":[{"id":863,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/862\/revisions\/863"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}