Kalviraj Seethalakshmi
Asked 8 years ago

SG chevron_right Primary 4 chevron_right Measurement

Replies 3
Caleb Tey

88cm is used to make 3 squares, so each square has a unique Length. Lets make it A+A+A+A + B+B+B+B + C+C+C+C = 88cm. this means that A+B+C = 88/4 = 22cm.

5 years ago
Caleb Tey

Note that PQ is A+B+C, ie., one side per square.

5 years ago
Kalviraj Seethalakshmi

Thank you

5 years ago

Esther Cha
Asked 8 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Can both solving consider correct?

Replies 1
Xavier Sng

Good afternoon. Both methods are acceptable. However, your first step in the first method has to be either slightly modified or split into two separate steps. You see, 63 + 37 (which yields 100) is not equal to 100 ÷ 2 (which yields 50). (63+37)÷2 = 100÷2 Or 63+37= 100 100÷2 = 50

5 years ago

Adrian Ng
Asked 8 years ago

SG chevron_right Primary 6 chevron_right Fractions

Making it visual...

Replies 0

Orange Tan
Asked 8 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Please help, thanks.

Replies 5
Caleb Tey

5 years ago
Orange Tan

Thank you.

5 years ago
Caleb Tey

5 years ago
Helen Soh

First to find out the largest number of units 376/13=28u No of Bonus=28/8=3u Therefore sold 25bags. Test check: 25x13+3x17=$376

5 years ago
Orange Tan

Thanks.

5 years ago

Jolene Koh
Asked 8 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Please help. Thanks

Replies 5
Pauline Vong Nyit Li

Done by my daughter. Hope it's correct ! 😁

5 years ago
Xavier Sng

Perfectly correct, and good job in recognizing the concept of unchanged total.

5 years ago
Jolene Koh

He could not understand by x4 and x5. Thanks

5 years ago
Xavier Sng

Pauline's daughter made the total number of units before (2+3=5) and after (1+3=4) the same at 20 units.

5 years ago
Pauline Vong Nyit Li

Since Gary gave Ann, the total of money they have did not change, correct ? Thus you have to make the total ratio of Gary and Ann at first and at the end equal (common multiple of 5 and 4) is 20. At first, 2 : 3 = (2+3) 5 5 x 4 = 20 At the end, 1 : 3 = (1+3) 4 So 4 x 5 = 20

5 years ago

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