Question

1000 - (642 + 128)=230286 + (500 -43)=743900- (800-645)=745​

Answer 1

Ответ:

1000 - (642 + 128) = 230

1000 - 770 = 230

230 = 230

286 + (500 - 43) = 743

286 + 457 = 743

743 = 743

900 - (800 - 645) = 745​

900 - 155 = 745

745 = 745

Answer 2

It looks like there's an issue with your equations. Let's break down each part:

1. 1000 - (642 + 128) = 1000 - 770 = 230

2. 286 + (500 - 43) = 286 + 457 = 743

3. 900 - (800 - 645) = 900 - 155 = 745

So, the correct equations are:

1. 1000 - (642 + 128) = 230
2. 286 + (500 - 43) = 743
3. 900 - (800 - 645) = 745

It seems there was a mistake in your initial equations.