multiplying 3-digit number by a 1 digit number

Estimating the Result of
Multiplying
2 Numbers

Let’s race.
235 × 14 312 × 17
123 × 22 254 × 31
176 × 12

How many mangoes
are there in the
baskets?

How do trees like the
Mango tree benefit our
environment, and why are
they important to us?

Trees help our environment by
providing clean air, reducing
carbon dioxide, preventing soil
erosion, and offering habitats for
wildlife. They are important to us
because they support life and
improve our well-being.

By appreciating and caring
for trees, we show our love for
nature and protect the planet
for future generations.

Let’s read.
Mang Joel and his company are
planting 1,765 Narra trees during
reforestation month. If they plan to
distribute the trees evenly across
23 hectares, about how many trees
will they plant in total?

What phrase in the
problem where
estimating products is
being asked?

• Round the multiplicand
and multiplier to the
highest/greatest place
value,
• Then, multiply the
rounded numbers.

Remember:
To multiply numbers which are
multiples of 10, the number of
zeroes in the factors are the number
of zeroes in the product. The factors
are the numbers being multiplied to
get the product.

Arrange stations with multiplication
problems involving two numbers
(482 × 37, 591 × 28, 738 X 14, 495 × 26).
Each station should have a problem
card and a space for learners
to write their estimates.

Estimation is useful in
real-life situations when
you need a quick,
approximate answer
rather than an exact
figure.

For example, it helps when
budgeting to get a general
idea of costs, when shopping to
check if you're within your
budget, or when planning
projects to quickly estimate
quantities and expenses.

Estimate the
product
of the following.

1. 2. 3.
3246
X 27
4546
X 46
5646
X 86

multiplying 3-digit number by a 1 digit number

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multiplying 3-digit number by a 1 digit number