Multiplication Of Whole Numbers, Decimals, Squares And Square Roots Worksheet With Answers Page 21
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41d) 11 + 2 = 13; 11.4 + 1.8 = 13.2; Difference: 0.2
Assessment
e) 90 + 101 = 191; 89.9 + 101.1 = 191; Difference: 0
Pupils should be able to identify the
f ) 340 × 50 = 17 000; 338 × 46 = 15 548;
relationship between the numbers (on their
Difference: 1 452
own or with assistance) and complete the
5. 410 spectators
exercise on their own.
Workbook
7. N 640
Lesson 6
8. a) 710; b) 700; c) 10
Pupil’s Book page 113;
9. N 90
Workbook page 30
Preparation
Assessment
You will need to have:
When the time is up, take in the pupils’ answers.
•
The answers to the Revision exercise to hand.
If you have time at the end of the lesson, you
could discuss some or all of the questions.
Lesson focus
This lesson continues to gauge the extent to which
Mark the exercise, taking note of where
individual pupils have achieved the objectives
individual pupils have not met the unit
stated at the beginning of this unit.
objectives, in order to give these pupils
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
Homework activity
20 minutes.
Pupils are to complete questions 7–9 on page 30
of the WB.
Pupils should work through the questions
individually. Encourage them not to spend too
much time on any one question if they are stuck.
Instead, they should go on to the next question,
and come back to the question they were struggling
with if they have time at the end of the assessment.
Answers
Revision exercise
1. a) 70; b) 80; c) 840; d) 290;
2. 56, 88, 101, 133
3. a)
28
28.9 29
b)
15
15.4
16
c)
12
12.5
13
d)
180
180.8
181
4. a) 1.5 + 1.5 = 3; 1.3 + 1.4 = 2.7; Difference: 0.3
b) 16 × 3 = 48; 16.2 × 3 = 48.6; Difference: 0.6
c) 13.5 + 1.5 = 15; 13.6 + 1.4 = 15; Difference: 0
76
Unit 17: Estimation
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