1987 AMC 8 Problem 1 — Solution | LIVE by Po-Shen Loh

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1987 AMC 8 Problem 1

Attempt Problem 1 of the 1987 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1987 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

1.

What is $0.4 + 0.02 + 0.006?$

$0.012$

$0.066$

$0.12$

$0.24$

$0.426$

Answer: E

Concepts:decimal place value

Difficulty rating: 450

Small Hint:

Line up the decimal points before adding

Big Hint:

Write the numbers as $0.400,$ $0.020,$ and $0.006$

Solution:

Adding place by place, $0.4 + 0.02 + 0.006 = 0.426.$

Thus, the correct answer is E .

Problem 1 in Other Years

1985 AMC 8 · 1986 AMC 8 · 1988 AMC 8 · 1989 AMC 8 · 1990 AMC 8 · 1991 AMC 8 · 1992 AMC 8 · 1993 AMC 8 · 1994 AMC 8 · 1995 AMC 8 · 1996 AMC 8 · 1997 AMC 8 · 1998 AMC 8 · 1999 AMC 8 · 2000 AMC 8 · 2001 AMC 8 · 2002 AMC 8 · 2003 AMC 8 · 2004 AMC 8 · 2005 AMC 8 · 2006 AMC 8 · 2007 AMC 8 · 2008 AMC 8 · 2009 AMC 8 · 2010 AMC 8 · 2011 AMC 8 · 2012 AMC 8 · 2013 AMC 8 · 2014 AMC 8 · 2015 AMC 8 · 2016 AMC 8 · 2017 AMC 8 · 2018 AMC 8 · 2019 AMC 8 · 2020 AMC 8 · 2022 AMC 8 · 2023 AMC 8 · 2024 AMC 8 · 2025 AMC 8 · 2026 AMC 8