Latihan Operasi Bilangan Bulat Kelas 6 Sd

Explanation
To solve the given equation, we first add 1234 and 5678, which gives us 6912. Then, we subtract 5432 from 6912, resulting in 1480. Therefore, the correct answer is 1480.

Explanation
The given expression can be simplified by following the order of operations (PEMDAS/BODMAS). First, we perform the multiplication: (-45) x (-2) = 90. Then, we subtract 90 from 290: 290 - 90 = 200. Therefore, the correct answer is 200.

Explanation
Santi bought 15 pax of chocolate candies. She gave 3 pax to her child and distributed the remaining among 10 neighbors. Each pax contains 85 candies. To find out how many candies the neighbors received, we subtract the candies given to the child (3 pax) from the total number of pax (15 pax). So, the neighbors received 12 pax. Since each pax contains 85 candies, the total number of candies received by the neighbors is 12 pax * 85 candies/pax = 1020 candies. Therefore, the correct answer is 102.

Explanation
To find the value of 5 x 16, we first subtract 125 from 1325 to get 1200. Then, we multiply 1200 by 5 to get 6000. Finally, we divide 6000 by 16 to get 375. Therefore, the correct answer is 375.

Explanation
The given expression involves addition and subtraction of numbers. Starting from the left, we add 241 and 25, which gives us 266. Then, we subtract -37 from 266, which is equivalent to adding 37. This gives us 303. Finally, we subtract 204 from 303, resulting in 99. Therefore, the correct answer is 99.

Explanation
The given expression is 45 - 78 + 256 + (-87). Starting from left to right, we first subtract 78 from 45, which gives us -33. Then, we add 256 to -33, resulting in 223. Lastly, we subtract 87 from 223, giving us the final answer of 136. Therefore, the correct answer is 136, not 46.

Explanation
Andi answered 18 questions correctly, which means he earned 18 points (18 x 4 = 72). He answered 5 questions incorrectly, which means he lost 10 points (5 x -2 = -10). He did not answer the remaining 2 questions, so he did not gain or lose any points for those. Therefore, his total score is 72 - 10 = 62.

Explanation
Dino bought 4 notebooks for Rp 3,250 each, which amounts to Rp 13,000. He also bought 8 pens for Rp 2,750 each, which amounts to Rp 22,000. Adding these two amounts, Dino has to pay a total of Rp 35,000.

Explanation
When the thermometer is dipped into the ice water mixed with salt, it experiences a decrease in temperature of 25°C. Since the initial temperature was 21°C, the final temperature indicated by the thermometer would be 21°C minus 25°C, which is -4°C.

Explanation
Wawan initially has a total length of wire equal to 20 x 75 cm = 1500 cm. Budi initially has a total length of wire equal to 15 x 100 cm = 1500 cm. They both give 10 pieces of wire each to Nino, so the total length of wire they give is 10 x 75 cm + 10 x 100 cm = 750 cm + 1000 cm = 1750 cm. Therefore, the total length of wire they have now is 1500 cm + 1500 cm - 1750 cm = 2250 cm. To convert this to meters, we divide by 100, so the answer is 22.5 meters. Since this option is not available, the closest option is 12.5 meters.