Place value 2

Wala: Place value 2

L.O: Use knowledge of place value to multiply and divide numbers by 10, 100 and 1000.

Place Value.

In pairs, ask each learner to draw the following placeholders on a mini whiteboard or a piece of paper.

Starter.

___ ___ . ___ ___

 

Learners take it in turns to roll a 0–9 die to generate 4 digits each and then write each digit on one of the empty placeholders. Learners should tell their partner the digit they are placing and the value it has. For example, if a learner rolled a 3 and placed it in the tenths place, they would say, ‘I’m putting my 3 in the tenths place, it is worth 3 tenths’.

Starter.

The other learner then rolls the die and repeats the process. Once a learner has placed a digit, they cannot move it. Once both learners have filled all of their placeholders, they compare their numbers and the player with the highest number wins.

Critical Thinking.

• Ask learners:

• What strategies are you using to help you win?

• Does the digit you roll determine where you want to place it?

Main Class Activity.

• Worked examples.

• 1)     243 × 100 =

• 2)     4530 x 1000 =

• 3)     431 × 1000 =

• 4)     2800 ÷ …… = 28

Individual Work.

• Learners book page 14

• Number 5 to 9

• Support learners who are struggling.

Look what I can do!

• I can explain the value of a digit in a decimal number (tenths and hundredths).

• I can multiply whole numbers by 100, 1000