Question

Exercise 4.2
1.
Fill in the missing numbers.
a) 12 * 30 = (12 *3)10 =
b)
36 x 20 =
* 2) × 10
c
)
49 x 90 = (49 9)
d)
4 300 = (4 *
x 100 =
e)
2 x 400 = (
x 4) * 100​

Answer 1

Answer:

don't know if you have any questions okk

Answer 2

Step-by-step explanation:

a) 12 * 30 = (12 *3)10 =360

b)36 x 20 =(36* 2) × 10

c) 49 x 90 = (49* 9)×10

d) 4* 300 = (4 * 3)x 100 =1200

e)2 x 400 = (2x 4) * 100