"Carry plus" PPT

Description

"Carry plus" PPT

Part One: Situation Import

How many fruit trees are there in the orchard?

Explore new knowledge

36+18=54 (tree)

Method 1: Place a stick

Method 2: Vertical calculation

In conclusion:

How to add two-digit numbers to two-digit numbers (carry) in writing:

(1) Alignment of the same digits;

(2) Add up from the ones place;

(3) When the ten digits add up to ten, advance 1 to the tens digit.

Carry plus PPT, part 2: Consolidation exercises

34+47 = 81

27+63 = 90

43+48 = 91

Carry plus PPT, the third part of the content: in-depth explanation of classic questions

1. There are 70 children in the kindergarten. Give the following apples to the children. One for each person. Is it enough?

2. Look at the diagram and calculate.

36+29 =65 (yuan)

First determine what the tens digit of the sum is, and then calculate.

The tens place of the sum should be 7.

There are more than 70 sections.

Tell me how you judge.

Keywords: Free download of Hebei Education Edition first-grade mathematics PPT courseware for the second volume, carry plus PPT download, .PPT format;

For more information about the PPT courseware "Addition and subtraction within 100, carry and addition", please click the Addition and subtraction within 100 ppt carry and addition ppt tag.

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Update Time: 2024-09-07

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

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