Grade Five Mathematics
10 20 40 4. 70 30 50 80 10 20 50
90 700 14. 70 7 7 stands for 7 tens, 2 stands for 2 ones. 1 stands for 1 hundred, 0 stands for 0 ten, 0 stands for 0 one.
1 stands for 1 thousand, 5 stands for 5 hundreds, 6 stands for 6 tens and 4 stands for 4 ones.
3 stands for 3 thousands, 7 stands for 7 hundreds, 6 stands for 6 tens, 8 stands for 8 ones.
3 stands for 3 hundred thousands, 2 stands for 2 ten thousands, 0 stands for 0 thousand, 1 stands for 1 hundred, 6 stands for 6 tens, 4 stands for 4 ones. 340 15 004
Bahamas Grenada
Bahamas, Jamaica, Puerto Rico, Cuba, Barbados, Cayman Islands, Trinidad and Tobago, Aruba, Grenada. 1. Two hundred forty seven thousand one hundred fifty three
2. Five hundred seventy two thousand nine hundred four
3. Nine hundred sixty three thousand seven hundred twenty one
4. Seven hundred fifty six thousand three hundred ninety five
5. One hundred ninety six thousand nine hundred three
6. Two million seven hundred twenty eight thousand nine hundred four 7. Three million six hundred forty nine thousand seven
8 Nine million one hundred seventy eight thousand seven hundred fifty six 9. Five million two hundred thirty eight thousand four hundred thirteen
10. Two million fifty six thousand fifty six 9 983 72 58 007 8 000 001 3 700 500 9 004 30 689 7 431 158 440 81 76 9996
Hello Boys and Girls! I hope that you are enjoying your vacation. However, do remember that you have to make time to do school work. Were you able to complete your Notation and Numeration exercises last week without much difficulty? This week we will study the topic: Types of Numbers.
ODD AND EVEN NUMBERS
777 700 100 3 648 900 200 30
Odd numbers are those numbers which end with a 1 or 3 or 5 or 7 or 9. Examples: 1, 25, 127, 3 279
Even Numbers are those numbers that end with a 0 or 2 or 4 or 6 or 8. Examples: 6, 32, 158, 2 564, 5000
Exercise 1
Write which of the following numbers are EVEN and which are ODD. 1. 75 2. 36 3. 567 4. 1000 5. 99 6. 1 566 7. 8 243 8. 27 511 9. 33 290 10. 127 689
TRIANGULAR NUMBERS
Triangular Numbers are those that can be arranged to form a TRIANGULAR PATTERN.
This is the Triangular Number Sequence:
1, 3, 6, 10, 15, 21, 28, 36, 45, ...
It is simply the number of dots in each
By adding another row of dots and counting all the dots we can find the next number of the sequence.
● The first triangle has just one dot.
● The second triangle has another row with 2 extra dots, making 1 +2 =3 ● The third triangle has another row with 3 extra dots, making 1 + 2 +3 =6 ● The fourth has 1 + 2 + 3 +4 = 10
Exercise 2
Calculate and draw triangular patterns for the 5th and 6th triangular number
SQUARE NUMBERS
A SQUARE NUMBER is obtained by multiplying any two numbers of the same value.
Examples: 1 x 1 =1
2x2=4
3x3=9
4 x 4 = 16
The square numbers shown above are: 1, 4, 9, 16
Look at the chart below. It shows how square numbers are calculated.
Write the next four square numbers in the sequence.
RECTANGULAR NUMBERS
Rectangular Numbers are those which are obtained by adding dots that are used to make up a rectangle. They are numbers that represent the total number of dots contained within a rectangular arrangement of dots with the number of columns being one more than the number of rows.
Examples:
To ‘trash’ something is to throw it into the garbage bin (literally or figuratively): In the debate, our lead speaker managed to trash every single argument brought by the Proposition.
To ‘thrash’ is to beat severely You can use it for a literal beating: Villagers gave the men a sound thrashing when they caught them stealing cows. And you can use it for a figurative beating: Australia will be in for a sound thrashing when they meet West Indies tomorrow.
PRACTICE WITH VERBS
Look at these two sentences:
If he does not buy the book, he will not find the information.
If he had not bought the book, he would not have found the information. Sentence A uses the present tense (does not buy) along with the future tense (will not find).
Sentence B uses the past perfect tense (had not bought) along with the past conditional (would have found). Notice that the verbs in Sentence B both need the past participle.
Now change all these Type A sentences into Type B sentences:
1. If you clean the floor, your socks will not look so dirty. 2. If you bake the chicken properly, it will not taste raw. 3. If you do not beat the mat, the dust will not come out. 4. If you do not go out in the rain, you will not catch cold. 5. If you do the exercises, you will not feel tired.
6. If you do not give her the letter, she will not know the truth. 7. If you forget the keys, you will kick yourself.
8. If you tell her the reason, she will understand.
9. If you sell the cycle, you will get enough money.
10. If they shoot the ship, it will sink.
11. If you lose the brooch, you will upset me.
12. If you swim to the wreck, I will show you the treasure.
ANSWERS