Can we make 1,000 using the numbers in the middle? Why not? What about 14,000, 15,000 and 16,000? Yes, it is possible. Explore how. What thousands cannot be made? (Refer the figure on page 65 of NCERT Textbook)

Question

Bright Tutorials · Accepted Answer

Yes, we can make 1000 using the numbers in the middle.
1000= 1500 – 400 – 400 – 4
14000 = 13000 + 400 × 2 + 400 = 2
15000 = 13000 + 400 × 4 + 400
16000= 13000 + 1500 × 2
3.8 Mental Math Figure it Out (Page No. 66 – 67)

Number Play — Question 28