"Written calculation (carrying) of multiplying two or three digits by one digit" PPT courseware for multiplying two or three digits by one digit

Description

"Written calculation (carrying) of multiplying two or three digits by one digit" PPT courseware for multiplying two or three digits by one digit

1. Oral calculation

400×2=800 300×6=1800

400×6=2400 300×2=600

600×2=1200 600×6=3600

See what digits each product is.

131×7= 612×8=

3×493= 4×541=

what have you found?

When a three-digit number is multiplied by a one-digit number, the product may be a three-digit number or a four-digit number.

Summarize

To multiply a three-digit number by a one-digit number, you need to multiply the three-digit numbers in the ones, tens, and hundreds digits by one digit. If the number in whichever digit is multiplied reaches tens, you must advance the number to the previous digit. .

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Update Time: 2024-10-29

This template belongs to Mathematics courseware Jiangsu Education Edition Third Grade Mathematics Volume 1 industry PPT template

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