40 Must- Know Series: Problem Sums (Volume 4) (**Circles, Volume, Rate, Angles & Folding Angles**)

S$35.00 S$32.50

The one BIG difference about this problem sums guidebook is it covers the other topical problem sums (such as Circles, Volume, Rate, Angles and Folding Angles.)

It comes with must-know tips and tricks on how to solve these problem sums – fast. We have also revealed the more advanced problem sums on 6 other types.

All books sold are non-refundable under any circumstances.

The one BIG difference about this problem sums guidebook is it covers the other topical problem sums (such as Circles, Volume, Rate, Angles and Folding Angles.)

It comes with must-know tips and tricks on how to solve these problem sums – fast. We have also revealed the more advanced problem sums on 6 other types.

All books sold are non-refundable under any circumstances.