Multiplication Large Numbers

Which is faster for 3,456 × 25, estimating or exact calculation? Why?

• Estimating, it is faster but less accurate.

• Exact, it avoids errors.

• Estimating, it is faster and more accurate.

• Exact, it is faster.

A factory produces 1,234 items daily. How many items are produced in 12 days?

• 14,808

• 12,808

• 13,808

• 15,808

A book costs $18.50. How much will 125 books cost?

• $2,312.50

• $2,322.50

• $2,400.00

• $2,312.50

23 x 45 = 1035 , What is 45 known as ?

• Multiplicand

• product

• Sum

• Multiplier

400 x 22 =

• 8899

• 4500

• 9000

• 8800

44 x 45 = _____________

• 1980

• 8091

• 9000

345 x 8 =

• 2,760

• 3,567

• 2,709

• 8,786

34 x 78 =

• 3,987

• 1,345

• 2,652

• 4,780

4,293 x 3 =

• 13,458

• 12,879

• 11,345

• 21,098

306 x 6 =

• 1836

• 1536

• 1816

• 1886