2.2.2 Squares, Square Roots, Cube and Cube Roots, PT3 Focus Practice


2.2.2 Squares, Square Roots, Cube and Cube Roots, PT3 Focus Practice

Question 6:
Complete the operation steps below by filling in the boxes using suitable numbers.
341727÷1916=327÷2516   =3÷54   =3×45   =


Solution:

341727÷1916=312527÷2516=53÷54=53×45=43


Question 7:
Complete the operation steps below by filling in the boxes using suitable numbers.
(27932764)2=(93)2=(12)2=

Solution:
(27932764)2=(25934)2=(5334)2=((5×4)(3×3)12)2=(1112)2=121144


Question 8:
Complete the operation steps below by filling in the boxes using suitable numbers.
3161640.32=3640.32=4=

Solution:
3161640.32=3125640.32=540.09=1.250.09=1.16


Question 9:
Find the value of:
(a)310275(b)449×30.216  

Solution:
(a)310275=31013527=312527=53

(b)449×30.216=27×32161000=27×6510=635