Answer:
1. A. 731 >> 700
2. A. 450 ÷ 10 = 45 >> 56
3. C. Associative Property
Step-by-step explanation:
3. The Associative Property of Multiplication states that with the use of GROUPING SYMBOLS, no matter how you write your answer out\in-side them, you will ALWAYS get the exact same result.
2. <em>Compatible</em><em> </em><em>Numbers</em><em> </em>are numbers that are easy to compute mentally, meaning that you have to physically figure out an estimate that this answer is closest to:
8 → 10
448 → 450
450 ÷ 10 = 45
448 ÷ 8 = 56
56 and 45 are close by 11, so this is the best answer.
1. 4623 - 3892 = 731 >> <em>700</em>
731 rounds down to 700 because that "3" in the tens place value chart, tells the hundreds digit to start as is, and turn the rest to zeros. Always recall this:
<em>Four </em><em>or</em><em> </em><em>less</em><em>,</em><em> </em><em>let</em><em> </em><em>it</em><em> </em><em>rest</em>
<em>Five</em><em> </em><em>or</em><em> </em><em>more</em><em>,</em><em> </em><em>let</em><em> </em><em>it</em><em> </em><em>soar</em>
I am joyous to assist you anytime.