2.21 To perform mental calculations

Mathematics

Division

Educator section

Memorandum

Leaner section

Content

Activity: to perform mental calculations [lo 1.9.3]

1. You have done a lot of division with large numbers. Can you still do it with smaller numbers? Complete the following mental calculation test as neatly and accurately as possible. Connect the correct answers to see what is hiding here.

1.1 35 ÷ 5 = ____________________

1.2 36 ÷ 4 = ____________________

1.3 96 ÷ 8 = ____________________

1.4 125 ÷ 25 = __________________

1.5 6 400 ÷ 10 = _________________

1.6 85 ÷ 5 = ____________________

1.7 92 ÷ 4 = ____________________

1.8 258 ÷ 6 = ___________________

1.9 182 ÷ 7 = ___________________

1.10 Halve 3 110: __________________

1.11 10 ÷ 10 = ____________________

1.12 _________________ ÷ 9 = 8

1.13 _________________. ÷ 6 = 9

1.14 132 ÷ _________________ = 12

1.15 Halve 5 418: _________________

15

Complete: A .................................................. was hiding away

Assessment

Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.

Assessment Standard 1.9: We know this when the learner performs mental calculations involving:

1.9.3: division with small numbers.