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Write about three other square roots
larger than this in the same way.

25 0 he square root
( of3~

Write the number that the letter represents in each equation.

a r xr =9 br x-r-=100 cr x-r-=81

Decide how to use your calculator to help you complete
these equations without using the . key.
a-f69 = b-r= cp =

f '1 10000 =

Explain how you did this.
Check your answers using the . key, like this:

rn [ID 0 rn ~~I...__,_' 6 _ ____.q· ' • _I __ I =_1. I

~ Make up several more equations like this. ffe X ffe = 4 X 4 = 16
Use only 2 different numbers
for each equation.

CHALLENGE

• Write all the numbers to 20 using more than one
square root each time.
• You can make 5 like this. --J36" - F + F = 5

I STEPS 5:14 I