Problem 4
- 5 l, 4 m
- 6 l, 5 m
- 7 l, 6 m
- 8 l, 7 m
- 10 l, 9 m
Problem 5
- 7 l, 5 m
- 8 l, 6 m
- 10 l, 8 m
- 12 l, 10 m
- 17 l, 15 m
Problem 6
- 1 l, 10 m
- 1 l, 12 m
- 1 l, 16 m
- 1 l, 20 m
- 1 l, 24 m
Problem 7
- 6 l, 4 m
- 7 l, 5 m
- 8 l, 6 m
- 11 l, 9 m
- 21 l, 19 m
Solve It: Find the Pattern
1.Look: There is a pattern
of black and white circles.
There are 2 white circles in
each picture. There are
different numbers of black
circles.
2.Plan and Do: Look for a
pattern. Figure out how the
numbers of white and black
circles are related to the pic-
ture number. There are 2
white circles in all pictures.
The number of black circles
is one more than the picture
number. Make drawings of
pictures 5 and 6.
3.Answer and Check: There
are 2 white circles and 9
black circles in Picture 8. The
number of white circles is the
same in each picture; there
are 2 in each picture. The
number of black circles starts
with 2 in Picture 1 and each
picture has one more black
circle than the picture before
it.
Face the Numbers
(pages 55–63)
Solve the Problem
- 5
- 3
- 9
- 9
- 6
Make the Case
Who’s wearing smarty pants?
Carl Cargo
Problem 1
- 9
- 3
- 11
- 7
- 6
Problem 2
- 2
- 5
- 9
- 4
- 10
Problem 3
- 4
- 3
- 10
- 8
- 6
Problem 4
- 8
- 2
- 10
- 16
- 6
Problem 5
- 6
- 1
- 12
- 8
- 13
Problem 6
- 10
- 8
- 20
- 16
- 2
Problem 7
- 5
- 7
- 2
- 15
- 9
Solve It: Face the Numbers
1.Look: Two equations are
shown with faces standing for
numbers. Equation A shows
that 10 + a rhino =16.
Equation B shows that the
sum of the rooster face num-
ber and the rhino face num-
ber is 13. The equations have
to be solved to figure out the
numbers the two faces stand
for.
2.Plan and Do: Use Equation
A to find the value of the
rhino, which is 16 – 10, or 6.
Replace the rhino in
Equation B with 6. Then the
rooster is 13 – 6, or 7.
3.Answer and Check: 7 and
6; Replace the faces with
their values in Equations A
and B. The sums should
check.
How Much Is This Bag?
(pages 66–74)
Solve the Problem
1.5¢
2.7¢
3.15¢
4.14¢
Make the Case
Who’s wearing smarty pants?
Carl Cargo
Problem 1
1.3¢
2.10¢
3.17¢
4.13¢
Problem 2
1.8¢
2.12¢
3.16¢
4.24¢
Problem 3
1.5¢
2.14¢
3.10¢
4.19¢
Problem 4
1.9¢
2.12¢
3.11¢
4.15¢
Problem 5
1.4¢
2.18¢
3.18¢
4.28¢
Problem 6
1.10¢
2.30¢
3.39¢
4.49¢
Problem 7
1.5¢
2.30¢
3.40¢
4.60¢
Solve It: How Much Is This
Bag?
1.Look: Three bags. In the
bag for 40¢, there are 4
bananas. The second bag has
one pear for 12¢. The third
bag has one apple for 10¢,
The problem is to figure out
the cost of the bag with one
banana, one pear, and one
apple.
2.Plan and Do: In the first
bag, the 4 bananas are 40¢,
so one banana is 10¢. To find
the cost of the bag with one
banana, one pear, and one
apple, add the costs of the
three fruits: 10¢ + 12¢ + 10¢
= 32¢.
3.Answer and Check: 32¢. To
check, replace each banana
with 10¢, and check the total
cost of the 4 bananas with the
number of cents shown on
the bag’s tag. Then check the
addition of the costs of the
three fruits. In the addition,
add the two prices that are
each 10¢ (10¢ + 10¢ = 20¢);
then add 12¢ to that total
(20¢ + 12¢ = 32¢).
80
Algebra Readiness Made Easy: Grade 1 © Greenes, Findell & Cavanagh, Scholastic Teaching Resources