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Decimal Multiplication using Grids

Decimal Multiplication using Grids
Decimal Multiplication using Grids
Decimal Multiplication using Grids
Decimal Multiplication using Grids
Decimal Multiplication using Grids
Decimal Multiplication using Grids
Product Description
A clear way of showing the both the “equal groups” aspect of decimal multiplication, and the place-value pattern involved in multiplying decimal numbers, in this case whole numbers by decimal numbers.

These activities use images of Base 10 Blocks to represent decimal numbers, with the (former) 100 square now indicating the number 1. Students color the number they are multiplying (the “group”) on the 100 grid. They then write the product in place value charts which are aligned vertically, showing the movement of the decimal point and the number in relation to each other as the size of the number being multiplied changes.

Two pages of blank grids are included for copying and practice on which students write in the problems.


Common Core Standards:

5.NBT.7: “…multiply decimals to hundredths, using concrete models
or drawings and strategies based on place value…”



Subject: Math, Decimals, Basic Operations

Level: Grades 5 – 6

Length/Duration: 15 pages of student work, 2-3 days

Type of Resource: Instructional unit with student activities drawing models of decimal multiplication and explaining the pattern of decimal point placement.

Answer Key: included

A Smartboard 10 file is also included. Click on the .zip file icon, and you can open the PDF and Smartboard files separately.

Total Pages
15 pages of student work, 2-3 days
Answer Key
Included
Teaching Duration
3 days
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Paul Murray

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