際際滷

際際滷Share a Scribd company logo

Tr.Reference 26.pptx

Download as PPTX, PDF
U
UgyenTshering51

The document provides examples of multiplying 3-digit numbers by 1-digit numbers. It shows the step-by-step work for multiplying 243 2, 130 3, 122 4, and 121 4. It then shows a more efficient method for multiplying 242 4 by breaking it into place value columns. Students are prompted to try multiplying 124 2 on their own whiteboards.

1 of 9
Download to read offline
multiply 3 digits by 1 digit
Starter T O Write a short multiplication to match the counters. T O X
243 Hundreds Tens Ones 486 2 times 243 2 = 486
Hundreds Tens Ones 130 3 =390 I think the answer is 390
122 4 = H T O 1 2 2 4 Hundreds Tens Ones (2 4) (20 4) (100 4) 488 X
121 4 = H T O 1 2 1 4 Hundreds Tens Ones X Have a go.
Hundreds Tens Ones H T O 2 4 2 x 4 10 10 10 10 100 100 1 1 10 10 10 10 100 100 1 1 10 10 10 10 100 100 1 1 10 10 10 10 100 100 1 1 How could we make this method more efficient?
Hundreds Tens Ones H T O x 100 1 1 1 1 100 1 1 1 1 100 1 1 1 1 1 0 4 3 Another one
H T O 1 2 4 x 2 Your turn have a go at calculating this one your whiteboards Hundreds Tens Ones

More Related Content

Tr.Reference 26.pptx