Without actual addition, find the sum of the following:
(a) 1+3+5+ 7 +9
(b) 1+3+5+7+9+11+13
5. Observe the pattern and fill in the blanks
113121
1012-10201
101012 102030201
-1020304030201
1010101012
6. Observe the pattern and fill in the blanks.
1² + 2² +22
22+ 3² +6²
3²+ - + 12²
+ 122 = 132
42 +52 + = 212
+ 6 + 302 = 312
Answers
Answered by
1
Answer:
a> 5^2 = 25
b> 7^2 = 49
Step-by-step explanation:
Answered by
1
Answer:
1)25, 2) 49.
Step-by-step explanation:
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