Order of Operations

Today we look at "Order of Operations using BODMAS

BODMAS is like a superhero code that helps us solve math problems in a certain order. Each letter stands for something special. B stands for Brackets (like putting numbers in parentheses), O stands for Orders (which means powers and square roots), D stands for Division, M stands for Multiplication, A stands for Addition, and S stands for Subtraction. So, when you see a math problem, you follow the BODMAS code to solve it step by step. Let's say you have this problem: 3 + 2 x (4 - 1). First, you do what's inside the brackets (4 - 1), which is 3. Then, you multiply 2 by the result, getting 6. Finally, you add 3 to 6, and the answer is 9. So, BODMAS helps us do each part in the right order to get the correct answer.

Try these:

1. Work out 5 + 4 x 2

11
13
8

2. Work out 50 ÷ (2 + 3)

15
5
10

3. Work out (5 x 3) + (24 ÷ 6)

19
22
16

4. Work out 8 + 8 ÷ 4

4
10
8

Multiplication and division

Today we revise operations:

1. What is 58 multiplied by 6?

308
348
3048

2. What is 132 multiplied by 5?

550
660
661

3. What is 425 multiplied by 3?

1225
1265
1275

4. What is 786 divided by 3?

162
222
262

5. What is 136 divided by 8?

17
18
19

6. What is 308 divided by 4?

68
77
82

WELCOME

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 This week we revise whole numbers:

TEST.

1. Which is the smallest number?

2136
2216
2091

2. Which is the largest number?

2136
2216
2091

3. Mary has four number cards: (7), (2), (1), (9). She is asked to arrange them in order to make different, four-digit numbers. Which is the smallest number Mary can make?

1279
2719
9721

4. In the number 7 213 456, the figure 3 has the value of 3000. What is the value of the 2?

2 000 000
2000
200 000

5. Write the following number - three million, fifty-six thousand, one hundred and two - in figures:

3,056,102
356,102
3,056,210

6. In a factory, boxes are stacked in piles of ten. If each box has a height of 15 inches, what is the height of a stack?

1,050 inches
150 inches
15 inches

7. A school buys 100 new textbooks for $1200. What is the cost of each book?

$12
$20
$120