6 Form PACE WORK 06/04/2020

6 Form PACE WORK 06/04/2020

Тема: Математична дія – Множення.

In this lesson, we will review multiplication.

Brainstorm the situations

-          What mathematical operation are these words connected with?

1. multiplication

2. multiply

3. times

4. problem

5. product

Multiplication

There are many things that can be multiplied: numbers, vectors, matrices, functions, equations, sets, pegs...

As an abstract operation, multiplication is the same as addition. Both are binary (i.e., defined for two elements) operations satisfying the same set of axioms:

The basic idea of multiplication is repeated addition.

 For example: 5 × 3 = 5 + 5 + 5 = 15

 But as well as multiplying by whole numbers, you can also multiply by fractions or decimals.

 For example 5 × 3½ = 5 + 5 + 5 + (half of 5) = 17.5

4.2 Practice.

Teacher: Draw a picture to a word problem? Solve it.

a)  Four children are playing tennis together. They all brought six balls. How many balls do they have total?

b)  The Smith family has five members. Each member has a small towel and a bath towel. How many towels hang in the bathroom?

c)   The Jones family orders four pizzas to eat. Each pizza is sliced into four parts.  How many pizza slices do they get?

d)  A town has three post offices. In each post office there are five

 workers. How many workers do the post offices have in total?

e) Mr. Johnson usually eats three meals a day.  How many meals does he eat in a normal week?

f) This Friday he skipped breakfast.  How many meals did he eat during this week?

g) In the following week, he ate three times on Monday, Tuesday, and Friday, and four times on the rest of the days.  How many meals did he eat during the week?

Solve the word problem.

a.  Mommy bought four egg cartons, and each had six eggs.  Two of the eggs were bad. How many good eggs did Mommy get?

b.  Johnson's ordered 4 pizzas again, sliced into four pieces each. This time the dog ate one piece. How many pieces did the people eat?

number of

           

c.  Joe has three friends who all have five toy cars, and then two friends who only have two cars. How many cars do Joe's friends have?

g.  On a family dinner table there are two plates for everybody, and only one plate for little Hannah.  10 people and Hannah came to the dinner .  How many plates were on the table?

h.  There are four horses, and three people.  How many feet are there total?

Thank you for the lesson!