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 equation of an ellipse with horizontal major axis, center (h, k), semi-major axis length a, and semi-minor axis length b?
+
What is the angle of a triangle with sides measuring 8, 10, and 12 using the sine law?
+
What is the derivative of sin²(x)cos(x)+tan(x) with respect to x?
+
New questions in Mathematics