"Two digits minus one digit" PPT

Description

"Two digits minus one digit" PPT

Part One: Course Examples

How many pictures does Xiaoqiang have?

I have 46 pictures, and I will give you 4.

Use your favorite method to calculate.

46-4 = 42 (pieces)

Divide 46 into 40 and 6...

4 tens and 6 ones minus 4 ones...

Can be calculated using a counter.

It can also be written in vertical form and calculated with pen.

To do pen math subtraction, align the same digits and subtract from the ones digit.

Two-digit minus one-digit PPT, part two: give it a try

61－9＝ 42－7＝ 94－6＝

In a 68-page storybook, you have read 9 pages. How many pages are left to read?

Use vertical calculation.

48－9＝ 53－6＝

70－7＝ 32－3＝

The little rabbit pulls a carrot.

I pulled out 15 carrots.

I pulled 8 carrots.

I pulled out 7 white radishes.

(1) How many more carrots are pulled than carrots?

(2) How many more carrots are pulled than white radish?

Two-digit minus one-digit PPT, part three: ask questions and answer them.

Our class borrowed 30 storybooks.

Our class borrowed 20 comic books.

What math questions can you ask?

How many storybooks are left?

46-30 = 16 (original)

How many books did the two classes borrow in total?

30 + 20 = 50 (book)

Keywords: Hebei Education Edition first-grade mathematics PPT courseware free download, two-digit minus one-digit PPT download, .PPT format;

For more information about the PPT courseware "Addition and subtraction within 100, two-digit subtraction by one digit", please click the Addition and subtraction within 100 ppt, two-digit subtraction by one digit ppt tag.

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Update Time: 2024-10-19

This template belongs to Mathematics courseware Hebei Education Edition First Grade Mathematics Volume 2 industry PPT template

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