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What the basic multiplication fact of 70x4?
70x4=280
In what ways are addition and multiplication alike?
Multiplication by an integer is the same as repeated addition.
How do you know that a multiplication fact is correct?
There are a few ways to determine if a multiplication fact is correct:Repeated addition: since multiplication is simply repeated addition at its base, you can reaffirm a multiplication fact by repeatedly adding the number you're multiplying. With the basic multiplication facts (i.e. times tables), this is possibly the best option.Division: Since it's simply the reverse of multiplication, then you can just reverse the process to confirm it.Using multiple methods: There are multiple ways to do multiplication than just the usual long multiplication done in school, such as lattice multiplication, and Ayurvedic multiplication (just to name the two I know). You can use these to confirm a multiplication.
What is two-fifths of 280?
One-fifth of 280 = 280/5 = 56Therefore: Two-fifths of 280 = 56*2 = 112
What is Two seventh of 280?
Two-sevenths of 280 can be calculated by multiplying 280 by (\frac{2}{7}). This results in (280 \times \frac{2}{7} = 80). Therefore, two-sevenths of 280 is 80.
