"Two digits minus one digit, whole tens" Addition and subtraction within 100 PPT courseware download

Description

"Two digits minus one digit, whole tens" Addition and subtraction within 100 PPT courseware download

Part One: Learning Objectives

1. Understand and master the calculation methods of two digits minus one digit (without abdication) and whole tens.

2. Be able to calculate correctly and solve practical problems according to calculation methods.

3. Through discussions, exchanges, and hands-on operations, students can clarify algorithms, experience the diversity of algorithms, and improve computing abilities.

Key Points: Master the calculation methods of two digits minus one digit (without abdication) and whole tens.

Difficulty: Understand the arithmetic of subtracting one digit from a two-digit number (without abdication) and integer tens.

Two-digit minus one-digit integer PPT, part two: review

35＋4＝ 42＋3＝ 5＋21＝

35＋40＝ 42＋30＝ 50＋21＝

Example explanation

(1) How many storybooks are left?

35-2＝

(2) How many comic books are left?

35-20=

How to calculate these two questions?

Summary

Subtraction from two digits to one digit without backing up

Subtract two digits to ten

Two digits minus one digit to ten PPT, the third part: quiz in class

1. Judgment.

(1)56 – 3 = 26 ( )

(2) 48 – 40 = 8 ( )

(3) 66 – 50 = 16 ( )

(4) 39 – 9 = 30 ( )

3. 6–4 = 9–5 = 7–3 = 8 –2 =

26–4 = 49–5 = 87–3 = 38–2 =

4. 30–10= 50–20= 70–40= 60–50=

38–10= 57–20= 76–40= 69–50=

Two-digit minus one-digit integer PPT, Part 4: Homework

1. Choose from the after-school exercises.

Keywords: Free download of PPT courseware for mathematics in the second volume of the first grade of People's Education Press, download of two-digit subtraction of one-digit integers and tens PPT, download of addition and subtraction within 100 PPT, .PPT format;

For more information about the PPT courseware "Addition and subtraction of two-digit numbers within 100, subtracting one-digit integers from tens", please click the PPT tag of Addition and subtraction of two-digit numbers within 100, subtracting one-digit integers from tens.

"Two digits minus one digit, whole tens" PPT teaching courseware for addition and subtraction within 100:

"Two digits minus one digit, whole tens" PPT teaching courseware for addition and subtraction within 100 Part One Content: Review knowledge 35+4= 42+3= 5+21= 35+40= 42+30= 50+21= All numbers in the same digit are directly related add. These two sets of questions...

"Two digits minus one digit, whole tens" PPT download of addition and subtraction within 100:

"Two digits minus one digit, whole tens" Addition and subtraction within 100 PPT download Part 1: Introduction to the topic 1. Calculate each of the following questions. 48-6= 59-9= 87-5= 18-9= 16-8 = 12-6= 2. See the diagram for the calculations. ( )-( ) = ( ) (root)..

"Two digits minus one digit, whole ten numbers" Addition and subtraction within 100 PPT:

"Two digits minus one digit, integer tens" PPT on addition and subtraction within 100 Part 1: Conversation introduction Students recall that when we were learning to add one digit to integer tens and integer tens (without carrying) , how did you find the solution to the problem? This section...

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Update Time: 2024-11-19

This template belongs to Mathematics courseware People's Education Press First Grade Mathematics Volume 2 industry PPT template

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