Page 133 - New Medley 5 Semester 1

7. Each carton has 12500 pencils. How many pencils in 36
such cartons?

8. 15 pens can be packed in a tray. How many trays are needed to pack
679860 pens?

9. Fill in the blanks.

(a) 36456 + 25578 = + 36456

(b) 0 + 65955 =

(c) [660714 + 592572] + 780413 = + [592572 + 780413]

(d) 42782 – 0 =

(e) 234219 – = 234219

10. Fill in the blanks.

(a) 21235 × 1 =

(b) 723635 × 0 =

(c) [23411 × 16456] × 32112 = 23411 × [ × ]

(d) 10343 ÷ 10343 =

(e) 543241 ÷ 1 =

11. Fill in the blanks.

(a) 7162 × 10 = (b) 4719 × 100 =

(c) 126 × 1000 = (d) 241 × 70 =

(e) 700 × 90 = (f) 800 × 200 =

12. Estimate the sum by rounding to the nearest ten.

96521 + 44431

Estimate: + =

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