Question 1 - Figure it out - Page 12, 13, 14 - Chapter 1 Class 8 - Fractions in Disguise (Ganita Prakash II)

Transcript

Question 1 Find the missing numbers. The first problem has been worked outLet’s check the Maths Left Side We see 5 blocks make up 100%. This means each block is 𝟏𝟎𝟎÷𝟓=𝟐𝟎%. Right Side We see the same 5 blocks. The bracket showing 60 covers 4 of those blocks. If 4 blocks =60, then 1 block =𝟔𝟎÷𝟒=𝟏𝟓. Thus, the total (all 5 blocks) would be 15 × 5=75 Check: The number at the end is indeed 75 !If 4 blocks =60, then 1 block =𝟔𝟎÷𝟒=𝟏𝟓. Thus, the total (all 5 blocks) would be 15 × 5=75 Check: The number at the end is indeed 75 ! Question 1 Find the missing numbers. The first problem has been worked outLeft Side There are 10 blocks total making 100%. So, 1 block =10%. The question mark is pointing to the first block, so ?=𝟏𝟎%. Right Side The bracket showing 𝟗𝟎 covers 9 blocks. If 9 blocks =90, then 1 block =90÷9=10. The question mark covers roughly the first 6 blocks. So, 6 blocks × 𝟏𝟎=𝟔𝟎 Thus ?=𝟔𝟎 Question 1 Find the missing numbers. The first problem has been worked outLeft Side There are 4 blocks making 100%. So, 1 block =25%. The question mark covers 1 blocks. So, ?=𝟕𝟓% Right Side The total is 𝟏𝟒𝟎. Since 4 blocks =140, then 1 block =𝟏𝟒𝟎÷𝟒=𝟑𝟓 The bottom arrow covers 3 blocks So, 𝟑 × 𝟑𝟓=𝟏𝟎𝟓 Thus ?=𝟏𝟎𝟓