ESTIMATION & SMART GUESSING

Train your number sense to make smart guesses and spot wrong answers.

L4L5

CS.N.3.3·Estimating results of calculations with natural numbers(III)

Section 1 / 3

THE ESTIMATION MINDSET

Estimation is not about getting the exact answer - it is about knowing roughly what to expect. Before calculating, close your eyes and guess: is the answer closer to 10, 100, or 1000? This builds strong number sense.

How many sweets in a jar?

1Count a small section (say 10 in one layer)

2Count the layers (about 5)

3Estimate: 10 x 5 = about 50 sweets

= 50

LEADER TIP

Run regular 'estimation stations' with jars of items. Children who estimate well develop stronger number sense overall.

BEFORE THIS LESSON, TRY

Bridging Through Ten

PRACTICE WITH THESE GAMES

Guess the Number

Math Bingo

Expression Compare

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

CONTINUE WITH:

Rounding to Nearest 10 & 100

ESTIMATION & SMART GUESSING

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ESTIMATION & SMART GUESSING