Subtraction: get how many units a number exceeds the other Division: lets you know how much a number is larger (or smaller) than the other.
To compare two numbers, subtraction finds the difference, indicating which number is larger or if they are equal, while division examines the ratio or proportion between them. Subtraction combines like terms according to signs, and division is similar to multiplication by the reciprocal. When comparing two squares, find each area via multiplication and then write a ratio by dividing the larger area by the smaller one.
When you are asked to compare two numbers, two operations you might use are subtraction and division. Subtraction can be used to find the difference between two numbers; if the result of subtraction is zero, the numbers are equal, a positive result indicates which number is larger, and a negative result indicates which is smaller. Division can be used to examine the ratio or proportion of one number to the other, showing how many times one number is contained within the other, or to compare to a unitary value if you set one number as 1.
The basic principle to use in working with addition and subtraction is to combine like terms while paying attention to the signs of the numbers, adding the magnitudes if the signs are the same, and subtracting the magnitudes if the signs are different. When working with whole numbers, one should pay attention to place value and ensure proper alignment of digits according to their value representation.
To compare the areas of two squares, for example, you would first find the area of each square by multiplying the length of a side by itself. After calculating both areas, take the area of the larger square and divide it by the area of the smaller square to find a ratio that compares the two areas. This division will yield a ratio, and if that ratio is greater than 1, it shows how many times larger the bigger area is compared to the smaller one.
Using intuition to assist in adding and subtracting fractions involves understanding the concept of having a common denominator, which allows for the direct comparison and manipulation of the fractional parts.
Finally, the order of operations is important when working with multiple mathematical operations. Multiply and divide are on the same level, as division is just multiplication by the reciprocal, and are done left to right. The same is true for adding and subtracting, since subtracting is essentially adding the opposite.
To compare two numbers, you can use subtraction to find the difference between them and division to find how many times one number fits into the other. Subtraction reveals how much larger one number is compared to the other, while division indicates their relative sizes. Both methods are useful for understanding numerical relationships.
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Penjelasan: Ammá (Ayah):“Na’pa’ko’ ngapa-nga’ TV mi?”(Kenapa kamu bengong lihat TV terus?) Anak:“Ia, Pa… saya menunggu acara ‘Cara Cepat Jadi Kaya’…” Ammá:“Lako’ko’ bongi-bongi, melo’ko’ ngidammi kerja, baru cepat kaya… Na TV, sampai keringmu nonton, tetap miskinmu!”(Pergi sana kerja malam-malam, baru bisa cepat kaya… Kalau cuma TV, sampai kering matamu nonton, tetap aja miskin!)Contoh lain: Ibu:“Ada’mo’ makanmu?”(Sudah makan?) Anak:“Belum, Bu… saya lagi diet.” Ibu:“Na’ diet? Kau’mi badan macam lidi, apa lagi mau didiet?!”(Diet apa? Badanmu sudah kayak lidi, apa lagi yang mau didiet?!) -mbah gpt