Parent Activity
Title
Parent
Information
During the past few weeks, 4th grade mathematics classes learned
how to multiply by 1-digit whole numbers. They also learned how to
use strategies for solving multiplication of 2-, 3-, and 4-digt
numbers by the numbers 0 through 9.
You can expect to see in their assignments practice problems with
multiplication by 1-digit numbers.
Below is a sample of how your child has been taught to multiply by a
1-digit number.
Benchmark
Objective
MA.4.A.1.2 – Multiply multi-digit whole numbers through four digits
fluently, demonstrating understanding of the standard algorithm,
and checking for reasonableness of results, including solving realworld problems.
Your child will learn how to.
Adapted from Houghton Mifflin Harcourt School Publishers and Hands‐On Standards ETA Cuisenaire www.thinkcentral.com www.etacuisenaire.com Vocabulary
partial products – A method of multiplying in which the ones, tens,
hundreds, and so on are multiplied separately and then the products
are added together.
Duration
Activity
Sample
FCAT
Question
30 minutes
Using a deck of playing cards or number cubes (dice), students
create a multiplication problem and solve using the partial product
method or by using the distributive property. A calculator can be
used to check for accuracy. The activity can begin by creating a 2digit by 1-digit multiplication problem by rolling the number cube 3
times or by using 2 number cubes. If using a deck of cards the child
flips over 3 cards from the deck (remove face cards and the 10’s).
Continue through a 3 or 4-digit by 2 or 3-digit multiplication
problem by either rolling more times or flipping more cards.
Note: By using number cubes, digits will never be greater than 6. If
using a deck of cards, Aces have a value of 1. The 10’s could be kept
in the deck and have a value of zero.
E.g. Using a deck of cards the numbers 3, 4, 2, and 8 are selected.
The number sentence could read 34 x 28, or 342 x 8. Numbers can
be arranged in another order, too. E.g., 24 x 38 or 842 x 3.
Mrs. Pate is displaying science projects on tables in the lunch room
for the science fair. She can display 6 projects on each table. If
there are 72 projects to display, what is the total number of tables
Mrs. Pate will need?
Adapted from Houghton Mifflin Harcourt School Publishers and Hands‐On Standards ETA Cuisenaire www.thinkcentral.com www.etacuisenaire.com Answer
Additional
Resources
and
Information
Florida Department of Education (www.fldoe.org)
iTools , Destination Math
Adapted from Houghton Mifflin Harcourt School Publishers and Hands‐On Standards ETA Cuisenaire www.thinkcentral.com www.etacuisenaire.com