Question

☆ Find the sum by using suitable rearrangement

a) 123 + 654 +377 +346

b) 542+765+ 368 +125​

Answer 1

▬▬▬▬▬▬▬▬▬▬▬▬▬

★ Find the sum by using suitable rearrangement :

a) 123 + 654 + 377 + 346

[7 + 3 = 10 So we will add 123 + 377 first & 4 + 7 = 10, so we will add 654 + 346 at last]

→ (123 + 377) + (654 + 346)

→ 500 + 1000

→ 1500

b) 542 + 765 + 368 + 125

[2 + 8 = 10 So, we will add 542 + 368 first & 5 + 5 = 10, so we will add 765 + 125 at last]

→ (542 + 368) + (765 + 125)

→ 910 + 890

→ 1800

▬▬▬▬▬▬▬▬▬▬▬▬▬

Answer 2

Answer:

a) 1500

b) 1800

Step-by-step explanation:

mark me brainlist