Number Operations · JHS3 Mathematics

Lesson notes

Learning Objectives

Indicator: B9.1.2.1.1 - Multiply and divide given numbers by powers of 10 including decimals and benchmark fractions

By the end of the lesson, learners can:

Recall multiplication facts up to 144 and related division facts fluently when multiplying and dividing by powers of 10.
Recall decimal and percentage names of benchmark fractions such as 1/2, 1/4, 3/4, 1/5, 1/10, and 1/100.
Multiply a given decimal number by 10, 100, and 1000 by moving the decimal point the correct number of places.
Divide a given decimal number by 10, 100, and 1000 by moving the decimal point the correct number of places.
Apply multiplication and division by powers of 10 to solve problems involving benchmark fractions expressed as decimals.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Number Operations (1.2)
Content standard: B9.1.2.1 - Apply mental mathematics and properties to determine answers for addition and subtraction of basic facts.
Indicator: B9.1.2.1.1 - Multiply and divide given numbers by powers of 10 including decimals and benchmark fractions
Suggested placement: Term 1, Week 3 (Week 3 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Mathematics, Common Core Programme (JHS1-JHS3), 2023, p. 168
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g.1. Recall multiplication facts up to 144 and related division facts.
E.g.2. Recall decimal names of given benchmark fractions converted to decimals or percentages (and vice versa)
E.g. 3. Find the product of a given decimal number when it is multiplied by 10, 100, 1000, 1 , 1 , 1 , etc.
10 100 1000