Round 23,421 to the nearest thousand and ten thousand

23,421 to the nearest thousand  is 23,000

23,421 to the nearest ten thousand  is 20,000

Step-by-step explanation:

round 23,421 to the nearest thousand and ten thousand

1 is in once place

2 is in tens place

4 is in hundreds place

3 is in thousands place

2 is in ten thousands place

To round the given number to nearest thousand , we look at the number in hundreds place. 4 is in hundreds place that is less than 5.

23,421 to the nearest thousand  is 23,000

To round the given number to nearest ten thousand , we look at the number in thousands place. 3 is in thousands place that is less than 5.

23,421 to the nearest ten thousand  is 20,000

c

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b