Question
4x21 using doubling twice strategy
50
likes250 views
Answer to a math question 4x21 using doubling twice strategy
Nash
4.987 Answers
1. First doubling:
4 \times 21 = (2 \times 21) \times 2
2. Simplify inside the parentheses:
2 \times 21 = 42
3. Second doubling:
42 \times 2 = 84
Answer:
4 \times 21 = 84
2. Simplify inside the parentheses:
3. Second doubling:
Answer:
Frequently asked questions (FAQs)
What is the mean, mode, median, range, and average of the following set of numbers: 5, 7, 9, 10, 10, 12, 15?
+
What is the dot product of vectors A = [-2, 3] and B = [4, -1]?
+
What is the domain of the function f(x) = 2cos(3x) - 1?
+
New questions in Mathematics