AC Lim's answer to Shanice's Primary 5 Maths Whole Numbers Singapore question.
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Figure 29 have total of 30×30 square.
Shaded square = 1+2+3+4.....27+28-29+30.
Formula = F × (F+1) ÷ 2
Total shaded square = 30×31 ÷ 2 = 465.
Hope this helps.
Shaded square = 1+2+3+4.....27+28-29+30.
Formula = F × (F+1) ÷ 2
Total shaded square = 30×31 ÷ 2 = 465.
Hope this helps.
Date Posted:
3 years ago
Thx so much AC Lim!!
Thx AC Lim!!
Most welcome. :)
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