"Written calculation of two-digit times two-digit numbers" Multiplication of two-digit numbers by two-digit numbers PPT courseware

Description

"Written calculation of two-digit times two-digit numbers" Multiplication of two-digit numbers by two-digit numbers PPT courseware

teaching objectives

1. Understand the arithmetic of two-digit times two-digit numbers, and be able to correctly calculate two-digit times two-digit numbers.

2. Guide students to effectively use original knowledge to promote the learning of new knowledge.

my gains

When multiplying a two-digit number by a two-digit number: first multiply the number in the ones digit of one factor by another factor, so that the last digit of the number is aligned with the ones digit of the factor; then multiply the number by the number in the tens digit to get the number Align the last digit of the factor with the tens digit of the factor; then add the two multiplied numbers.

practice

34×15= 13×19 =

26×18= 25×35=

15×17= 11×16=

55×21= 28×10=

Summary of the whole lesson

Can perform vertical expression calculations to multiply two-digit numbers by two-digit numbers.

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Update Time: 2024-10-19

This template belongs to Mathematics courseware Western Normal University Edition Third Grade Mathematics Volume 2 industry PPT template

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