Question

Exercise 1B
1. Evaluate:
a. 23 x (-16)
b. (-362) x 274
c. (-110) X-112 d. -24 x (-300) X 240.

2. Fill in the blanks by choosing the correct answer.
a. 15 X (-10) =
(-150/150)
b. - 20 x 12 =
(-240/240)
c. 3x (-12) =
(36/-36)
d. (-7) X (-9) =
(637-63)
e. (-90) x (-5) =
(450/-450)​

Answer 1

Answer:

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The process of photosynthesis is commonly written as:

6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants,

six carbon dioxide molecules and six water molecules,

are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules,

the products.

Answer 2

Step-by-step explanation:

(1)

a: 23×(-16) = -168

b: (-362)×274= -99188

c: (-110)×-112= 12320

d: (-24)×(-300)×(240)= 1728,000

(2)

a: 15×(-10)= -150

b: -20×12= -240

c: 3×(-12)= -36

d: -7×-9 = 63

e: -90×-5= 450