Multiplication Of Whole Numbers, Decimals, Squares And Square Roots Worksheet With Answers Page 12
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41Lesson 5
Pupils should work through the questions
Pupil’s Book page 99
individually. Encourage them not to spend too
Preparation
much time on any one question if they are stuck.
Instead, they should go on to the next question,
You will need to have:
and come back to the question they were struggling
•
The answers to the Quantitative reasoning
with if they have time at the end of the assessment.
exercise to hand.
Answers
Lesson focus
This and the next lesson gauges the extent to which
Revision exercise
individual pupils have achieved the objectives
1. a) 13
= 169
b) 36
= 1 296
2
2
stated at the beginning of this unit.
c) 26
= 676
d) 43
= 1 849
2
2
Guide the pupils through the example for Exercise 5.
e) 55
= 3 025
2
Help them to see the pattern and allow them to
2. a) 64: 2 × 2 × 2 × 2 × 2 × 2
___
___________________
complete the questions on their own.
√
64 =
(2 × 2 × 2) × (2 × 2 × 2)
√
_____
=
8 × 8 = 8
√
If you have time at the end of the lesson, you could
b) 225: 3 × 3 × 5 × 5
discuss some or all of the questions.
_____________
____
225 =
(3 × 5) × (3 × 5)
√
√
_______
= √
15 × 15 = 15
Answers
c) 361: 19 × 19
____
_______
Exercise 5
361 = √
19 × 19 = 19
√
a) 36; b) 9; c) 4; d) 15; e) 144; f ) 13; g) 16;
d) 256: 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2
_________________________
____
h) 289; i) 16; j) 20
256 =
(2 × 2 × 2 × 2) × (2 × 2 × 2 × 2)
√
√
_______
= √
16 × 16 = 16
e) 196: 2 × 2 × 7 × 7
____
_____________
Assessment
196 =
(2 × 7) × (2 × 7)
√
√
_______
Pupils should be able to identify the
= √
14 × 14 = 14
relationship between the numbers (on their
f ) 9: 3 × 3; 16: 2 × 2 × 2 × 2
______
___________________
own or with assistance) and complete the
9 × 16 =
(3 × 2 × 2) × (3 × 2 × 2)
√
√
_______
exercise on their own.
=
12 × 12 = 12
√
3. a) and d)
Lesson 6
Pupil’s Book page 100
Assessment
Preparation
When the time is up, take in the pupils’
You will need to have:
answers. If you have time at the end of the
•
The answers to the Revision exercise to hand.
lesson, you could discuss some or all of the
questions.
Lesson focus
Mark the exercise, taking note of where
This lesson continues to gauge the extent to which
individual pupils have not met the unit
individual pupils have achieved the objectives of
objectives, in order to give these pupils
this unit.
additional teaching input where required.
You should give pupils a set time in which to
complete the Revision exercise. Most pupils should
be able to achieve their maximum score in about
20 minutes.
67
Unit 15: Squares and square roots
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