Quantity Relationships
By the end of Grade 3, students will:
– represent, compare, and order whole numbers
to 1000, using a variety of tools (e.g.,
base ten materials or drawings of them,
number lines with increments of 100 or
other appropriate amounts);
– read and print in words whole numbers to
one hundred, using meaningful contexts
(e.g., books, speed limit signs);
– identify and represent the value of a digit
in a number according to its position in
the number (e.g., use base ten materials
to show that the 3 in 324 represents
3 hundreds);
– compose and decompose three-digit
numbers into hundreds, tens, and ones in
a variety of ways, using concrete materials
(e.g., use base ten materials to decompose
327 into 3 hundreds, 2 tens, and 7 ones, or
into 2 hundreds, 12 tens, and 7 ones);
– round two-digit numbers to the nearest
ten, in problems arising from real-life
situations;
– represent and explain, using concrete
materials, the relationship among the
numbers 1, 10, 100, and 1000, (e.g., use
base ten materials to represent the relationship
between a decade and a century,
or a century and a millennium);
– divide whole objects and sets of objects
into equal parts, and identify the parts
using fractional names (e.g., one half;
three thirds; two fourths or two quarters),
without using numbers in standard
fractional notation;
– represent and describe the relationships
between coins and bills up to $10 (e.g.,
“There are eight quarters in a toonie and
ten dimes in a loonie.”);
– estimate, count, and represent (using the
$ symbol) the value of a collection of
coins and bills with a maximum value of
$10;
– solve problems that arise from real-life
situations and that relate to the magnitude
of whole numbers up to 1000 (Sample
problem: Do you know anyone who has
lived for close to 1000 days? Explain your
reasoning.).