4th grade

without multiplying, how do you know that the product of 399 and 48 is smaller than 20,722?

  1. 👍 0
  2. 👎 0
  3. 👁 42
asked by dk
  1. what is 50x400?

  2. 20,000

    1. 👍 0
    2. 👎 0
    posted by dk
  3. Since 399 is less than 400 and 48 is less than 50, then obviously the answer must be less than 20,000. Right?

  4. the world in the 1400s

    1. 👍 0
    2. 👎 0
  5. how can you show without multiplying that 4/9 is greater then 0.4

    1. 👍 0
    2. 👎 0
    posted by Juan

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math riddle

    Why is 1,399,411 smaller than 1,296,204?

    asked by Alex on September 15, 2008
  2. Math

    I need help with this question: Estimate the product by rounding to the nearest one 6.38 times 18.716 I said on my assignment 120 and my teacher marked it wrong. She said it's 114, and I donot see how it's 114. Any input, would

    asked by Gee on March 4, 2007
  3. Math

    There are 4 odd functions and 3 even functions in the gallery of the 12 basic functions. After multiplying these functions together pairwise in different combinations and exploring their graphs, make a conjecture about the

    asked by Anonymous on September 11, 2017
  4. Math

    When multiplying decimals, the decimal point in the product is placed so that the number of decimal places in the product is equal to the __________ of the number of decimal places in the factors. (a) product (b) sum (c)

    asked by George on September 14, 2011
  5. 6th grade math

    how do you estimate a product when multiplying fractions?

    asked by laura roman on October 29, 2009
  6. 4th grade

    reena says the product of 54 and 9 cannot be 487. she says that she knows this without actually multiplying. how does she know?

    asked by dk on January 20, 2011
  7. Algebra

    The product of 2 and y plus the result of multiplying z by 2 plus x equals 3.

    asked by Joy on November 23, 2013
  8. Math

    Multiply: Try to recognize the type of product to be multiplying. (x-4x^3)^2

    asked by Ms.Ellis on July 15, 2011
  9. Math 140

    Find the derivative of f(x)=(1+7x^2)(x-x^2) by using the product rule and by multiplying first.

    asked by Manuel on September 26, 2017
  10. Accounting

    Below is budgeted production and sales information for Flushing Company for the month of December: Product XXX Product ZZZ Estimated beginning inventory 30,000 units 18,000 units Desired ending inventory 34,000 units 17,000 units

    asked by Anonymous on July 14, 2013

More Similar Questions