IGCSE /Grade 7
Maths MCQ Based On Adding and subtracting whole numbers
Our free online Maths test quiz for Grade 7, IGCSE will assist you to improve your Maths skills on every concept in a fun interactive way.
Happy students
Awesome classes
IGCSE Grade 7 Maths Adding and subtracting whole numbers
|
Given that the initial temperature was 34.5 degrees Celsius and the temperature increased by 12.3 degrees Celsius after 10 minutes, we can calculate the temperature after the incorrect reading:
Temperature after incorrect reading = Initial temperature + Temperature increase - Incorrect temperature decrease = 34.5 + 12.3 - (-9.7) = 56.5 degrees Celsius
Now, using the correct reading of 27.8 degrees Celsius, we need to adjust the temperature change:
Temperature adjustment = Correct reading - Incorrect reading = 27.8 - 56.5 = -28.7 degrees Celsius
To determine the final temperature, we subtract the temperature adjustment from the incorrect reading:
Final temperature = Incorrect reading + Temperature adjustment = 56.5 + (-28.7) = 27.8 degrees Celsius
Therefore, the final temperature after accounting for the correct measurements is 27.8 degrees Celsius.
Start with the ones.
arrange the numbers and add the correct place value
Sum of coins in the three chests = (Number of coins in the first chest) + (Number of coins in the second chest) + (Number of coins in the third chest) = 4,981 + 7,204 + 2,567 = 14,752 coins
To find the smallest number divisible by both 17 and 23, we need to find their least common multiple (LCM).
The LCM of 17 and 23 is 391.
Now, we need to find the smallest multiple of 391 greater than 14,752.
Dividing 14,752 by 391 gives a quotient of 37. Rounding this quotient up to the nearest whole number gives us 38.
The minimum number of additional coins the treasure hunter must add is given by: Additional coins = (Smallest multiple of 391 greater than 14,752) - (Sum of coins in the three chests) = (38 * 391) - 14,752 = 14,858 - 14,752 = 106 coins
number of passed students add number of failed students
Total elevation gained in the first three days = (Elevation gained on the first day) + (Elevation gained on the second day) + (Elevation gained on the third day) = 9,764 + 15,893 + 12,546 = 38,203 feet
Additional elevation they need to ascend = (Elevation of the plateau) - (Total elevation gained in the first three days) = 25,000 - 38,203 = -13,203 feet
The negative result indicates that the group of friends had already surpassed the elevation of the plateau by 13,203 feet. Hence, they did not need to ascend any further after completing the third day's hike.
Start with the ones
123,374,567- 111,491,345+ 285,789,665 = 297,672,887
Start with the ones.
Subtract the ones. You need to do exchanging here.
At JustTutors, we believe in the power of digital technology to help students get personalized learning and attention from India's best-in-class science, english and math tutors. We are focused on creating a top-class e-learning platform that brings together the best teachers, technology, media, content for creating a seamless and world-class experience for every student.