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 slope-intercept form of a line passing through (-3, 5) and (2, -1)?
+
Math question: What is the limit of (sin(x) - x)/(ln(x)) as x approaches 0+?
+
What is the radius of a circle function, represented as x^2 + y^2 = r^2, if the x-coordinate and y-coordinate of a point on the circle are both equal to 5?
+
New questions in Mathematics