Decimal Points Everywhere

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1 +1
2=4
Decimals:
1 =—
1 + 8—
—
—
=
6
8
8 9 + 9876. 5 4 3 2 1 = ?
?
8 ✹ 0 . 5 = 0.50 = 0 . 5 0 0 ✹ 123.4 5 6 7Multiplication
3—
✹
2 4 —
2
& Division
Decimal Points Everywhere
This crossword puzzle points students to success with the multiplication
and division of decimals.
LEARNING OBJECTIVE
Directions
Students multiply and divide
decimals.
1. Duplicate the reproducible for each student.
2. Review the multiplication of decimals as follows.
a. Multiply as you would with
whole numbers.
8.2
x 1 .3
24 6
82
1066
b. Put as many decimal places in
the product as there are in the
factors combined.
8.2 ← 1 place
x 1 .3 ← 1 place
24 6
82
← 2 places
10.66
Individual
MATERIALS
For each student:
✹ Decimal Points Everywhere
reproducible (p. 118)
3. Review the division of decimals as follows.
a. Place the decimal point in
the quotient directly above
decimal point in dividend.
GROUPING
b. Divide as you would with
whole numbers.
✹ calculator (optional)
0 .89
7 ) 6 .2 3
.
7 ) 6 .2 3
56
63
63
4. Distribute the reproducible and allow students to complete it on
their own. You may wish to let them use calculators.
Taking It Further
Encourage students to make their own decimal puzzles for classmates to
solve. Use the crossword squares on the reproducible and have students
write their own problems. Require them to make a key for checking.
Answers
Page 118:
Across
3. 12.54
4. 4.7
5. 9.8
6. 27.1
7. 8.2
8. 29.01
11. 13.6
Down
1. 34.17
2. 8.8
3. 17.82
4. 4.28
5. 9.12
9. 9.1
10. 1.68
12. 3.7
Assessing Skills
✹ Are students counting decimal places from the left or the right?
✹ Encourage students to estimate to see that the answers are
reasonable.
The Great BIG Book of Funtastic Math © Scholastic Teaching Resources
117
Name
Date
Decimal Points Everywhere
Can you find the decimal point in each of these answers? This
crossword puzzle is sure to sharpen your skills and point you
toward success with multiplication and division of decimals.
1
2
3 6 . 5 8
3
4
5
6
7
8
9
11
10
12
Find the product or quotient and write the answer in
the crossword puzzle. The decimal point will occupy
a square. The first one has been done for you.
ACROSS
1. 5.9 × 6.2 =
DOWN
36.58
1. 6.7 × 5.1 =
3. 3.3 × 3.8 =
2. 26.4 ÷ 3 =
4. 28.2 ÷ 6 =
3. 8.1 × 2.2 =
5. 19.6 ÷ 2 =
4. 2.14 × 2 =
6. 162.6 ÷ 6 =
5. 4.8 × 1.9 =
7. 49.2 ÷ 6 =
9. 36.4 ÷ 4 =
8. 87.03 ÷ 3 =
10. 1.4 × 1.2 =
11. 27.2 ÷ 2 =
118
12. 22.2 ÷ 6 =
The Great BIG Book of Funtastic Math © Scholastic Teaching Resources
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