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Subscribe to Homeschool Math Newsletter - filled with math teaching information February 2010 newsletter
Latest from my blog This is where you'll find the latest happenings, news, & ideas in math teaching Math teaching videos My videos at YouTube show you how to teach concepts.
Multiply & divide decimals by 10, 100, or 1000
Hover your mouse above to open a menu of various worksheets you can generate for free! Advice, reviews, and resources to help you choose a math curriculum! Games you can play online, interactive tutorials, fun math websites and more. Arranged by topic/level for ease of use. Learn how to TEACH concepts or about general concerns in math education. Reviews In-depth reviews of math products Math help & tutoring A list of free message boards, math help websites, and online tutoring services. My Amazon Store See some math products I recommend. I have two games on my site, plus links to many. |
Drilling multiplication tables of 2, 3, 10, and 5
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| × | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 2 |
Is there any connection between the two lines of numbers you just wrote?
Those numbers form THE MULTIPLICATION TABLE OF 2. It is often written in this form, too. Fill in the table.
| 1 × 2 = __
2 × 2 = __ 3 × 2 = __ |
4 × 2 = __ 5 × 2 = __ 6 × 2 = __ |
7 × 2 = __
8 × 2 = __ 9 × 2 = __ |
10 × 2 = __ 11 × 2 = __ 12 × 2 = __ |
You need to memorize these facts. Cover the answers in the table with one hand and try to remember them! Also practice them orally with your teacher.
1. Count by twos again. Cover the list with your hand and repeat the list in your head or to your teacher until you can list the numbers easily. You can first work with the first half of the list, then with the second half, and lastly do the whole thing.
0, 2, __, __, __, __, __, __, __, __, __, __, __
2. Count by twos backwards. Cover the list with your hand and repeat the list in your head or to your teacher until you can list the numbers easily.
24, __, __, __, __, __, __, __, __, __, __, __, 0
3. Fill in the missing numbers - but only in your head. Do NOT write the answers down. Go through the problems in your head or with your teacher until you remember them easily.
| a.
× 2 = 4
|
b.
× 2 =
6
× 2 = 24
|
c.
2 ×
= 2
2 ×
= 24
2 × 2 × |
d.
2 ×
= 8
2 ×
= 20
2 × 2 × |
Count by threes: 0, 3, 6, __, __, __, __, __, __, __, __, __, __
Those numbers form THE MULTIPLICATION TABLE OF 3. It is often written in this form, too. Fill in the table. You need to memorize these facts. Cover the answers in the table with one hand and try to remember them! Also practice them orally with your teacher.
| 1 × 3 = __ 2 × 3 = __ 3 × 3 = __ | 4 × 3 = __ 5 × 3 = __ 6 × 3 = __ | 7 × 3 = __ 8 × 3 = __ 9 × 3 = __ | 10 × 3 = __ 11 × 3 = __ 12 × 3 = __ |
Note: the multiplication fact 2 × 3 = 6 or 3 × 2 = 6 is both in the table of three and table of two.
1. Count by threes again, both up and down. Cover a list with your hand and repeat it in your head or to your teacher until you can list the numbers easily. You can first work with the first half of the list, then with the second half, and lastly do the whole thing.
0, 3, __, __, __, __, __, __, __, __, __, __, __
36, __, __, __, __, __, __, __, __, __, __, __, 0
2. Multiply - but only in your head. Do NOT write the answers down. Go through the problems in your head until you master them easily.
| a. 8 × 3 11 × 39 × 3 4 × 310 × 3 | b. 7 × 3 2 × 36 × 3 12 × 35 × 3 | c. 3 × 9 3 × 63 × 1 3 × 33 × 5 | d. 3 × 7 3 × 103 × 4 3 × 113 × 8 | e. 3 × 3 1 × 33 × 12 8 × 3 3 × 2 |
3. Fill the missing numbers - but only in your head. You can drill these problems like the ones before.
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| | 3 × 3 × 3 × 3 × | 3 × 3 × 3 × 3 × |
6. Fill in parts of the multiplication table that we have studied.
| × /b> | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
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| 12 |
Fill in THE MULTIPLICATION TABLE OF 10. That is one
of the easiest!
You need to memorize these facts. Cover the answers in the table with one
hand and try to remember them! Also practice
them orally with your teacher.
| 1 × 10 = __
2 × 10 = __ 3 × 10 = __ |
4 × 10 = __ 5 × 10 = __ 6 × 10 = __ |
7 × 10 = __
8 × 10 = __ 9 × 10 = __ |
10 × 10 = __
11 × 10 = __ 12 × 10 = __ |
What same multiplication fact is both in the table of three and table of ten?
10 × 3 = 30 or 3 × 10 = 30
What same multiplication fact is both in the table of two and table of ten?
_____________________________________
1. Count by tens. Cover the list with your hand and repeat the list in your head or to your teacher until you can list the numbers easily. You can first work with the first half of the list, then with the second half, and lastly do the whole thing.
0, 10, __, __, __, __, __, __, __, __, __, __, __
2. Count by tens backwards. Cover the list with your hand and repeat the list in your head or to your teacher until you can list the numbers easily.
120, __, __, __, __, __, __, __, __, __, __, __, 0
3. Multiply - but only in your head. Do NOT write the answers down. Go through the problems in your head or with your teacher until you master them easily.
| a.
5 × 10 12 × 103 × 10 7 × 1010 × 10 2 × 5 |
b.
6 × 10 9 × 104 × 10 11 × 108 × 10 1 × 10 |
c.
10 × 8 10 × 210 × 4 10 × 510 × 12 10 × 3 |
d.
10 × 7 10 × 1010 × 1 10 × 1110 × 9 10 × 6 |
5. Fill in parts of the multiplication table that we have studied.
| × /b> | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
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| 12 |
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One centimeter (cm) has ten millimeters (mm). 1 cm = 10 mm.
|
6. Change centimeters into millimeters and vice versa!
| 2 cm = ___ mm
5 cm = ___ mm 11 cm = ___ mm |
7 cm = ___ mm
9 cm = ___ mm 6 cm = ___ mm |
___ cm = 30 mm
___ cm = 80 mm ___ cm = 120 mm |
8. Measure a spoon, a pencil, a pen, a nail, and a safety-pin in centimeters and millimeters.
| spoon:
pencil: pen: |
___ cm ___ mm
___ cm ___ mm ___ cm ___ mm |
nail:
safety-pin: |
___ cm ___ mm
___ cm ___ mm |
Count by fives.
0, 5, __, __, __, __, __, __, __, __, __, __, __
Fill in THE MULTIPLICATION TABLE OF 5. That is also an easy one!
You need to memorize these facts. Cover the
answers in the table with one hand and try to remember them! Also practice
them orally with your teacher.
| 1 × 5 = __
2 × 5 = __ 3 × 5 = __ |
4 × 5 = __ 5 × 5 = __ 6 × 5 = __ |
7 × 5 = __
8 × 5 = __ 9 × 5 = __ |
10 × 5 = __
11 × 5 = __ 12 × 5 = __ |
What same multiplication fact is both in the table of two and table of five?
_____________________________________
What same multiplication fact is both in the table of three and table of five?
_____________________________________
What same multiplication fact is both in the table of ten and table of five?
_____________________________________
1. Count by fives. Cover the list with your hand and repeat the list in your head or to your teacher until you can list the numbers easily. You can first work with the first half of the list, then with the second half, and lastly do the whole thing.
0, 5, __, __, __, __, __, __, __, __, __, __, __
3. Multiply - but only in your head. Do NOT write the answers down. Go through the problems in your head or with your teacher until you master them easily.
|
5 × 5 11 × 52 × 5 4 × 510 × 5 3 × 5 |
6 × 5 9 × 57 × 5 12 × 58 × 5 1 × 5 |
5 × 8
5 × 2 5 × 1 5 × 35 × 12 5 × 5 |
5 × 7 5 × 105 × 4 5 × 115 × 9 5 × 6 |
4. Fill in the missing numbers - but only in your head. Do NOT write the answers down. Go through the problems in your head or with your teacher until you remember them easily.
|
×
5 = 40
|
×
5 = 30
× 5 = 50
|
5 ×
= 15
5 ×
= 5
5 × 5 × |
5 ×
= 30
5 ×
= 60
5 × 5 × |
6. Fill in parts of the multiplication table that we have studied.
| × | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
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12 |
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Copyright 2003-2010 Maria Miller
http://www.homeschoolmath.net/