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Flashcards in Square Roots Deck (6):
0

Define a square root:

A square root of a number is a number which, multiplied by itself, equals the first number.
Ex: 5 is the square root of 25

1

Square root of 16?

4

2

Square root of 49?

7

3

Square root of 900?

30

4

Square root of 2025?

45

5

How do you calculate the square root when the square root is a decimal number?

Answer line:________
36 98
Calculate the nearest square root of the first two digits.Put the answer on top and do the first two digits - the square.
6_______
36 98
36
00 98 Put down the next two digits.
Multiply 6 by 2=12
Now you know that 12*x*=the biggest number you can get under 98. You must calculate * (* is a digit).
120x0=0
Put 0 in your answer line.
Do 98-0=98
Put down the next two digits (if there aren't any, put down 00).
Do it again!
60x2=120
120*x*=closest to 9800
1208x8=9664
Put 8 on the answer line, 9800-9664=146, put down 00, and so on until you get 0 when you do your number minus the product.