1. Write 38,600 in scientific notation
A 386 x 10 B. 386 x 104 C. 3.86 x 104 D. 3.86 x 10 2. Which one of these is in scientific notation? A 8.98 B. 8.98 x 106 C. 80.987 x 10 D. 8.987000 3. What is 4,500,000 written in scientific notation form? A. 4.5 x 100 B. 4.5 x 106 C. 4.5 * 105 D. 45,000 4. What is 6.73 * 10-4 written in decimal notation? A. 67, 300 B. 6, 300 C. 0.000673 D. 0.0000673 5. A pack of cards contains 52 cards. How many cards in 12 packs? A 13 cards B 26 cards C. 264 cards D. 624 cards 6. You take 6 steps forward and 8 steps backward. How many steps have you taken? A-1 B-2 C. 14 D. 48 7. You bought a pencil for Spesos and 4 erasers. You spent a total of 25pesos. How much did each eraser costs? A. 4 pesos B. 5 pesos C. 6 pesos 8. Calculators come in boxes of 24. A school orders 13 boxes. How many calculators will the school get? A 13 calculators B. 24 calculators C. 312 calculators D. 321 calculators 9. There are 261 fishbowls. Each fishbowl has 23 fishes. How many fishes are there? A 274 fishes B. 3006 fishes C. 6000 fishes D. 6003 fishes 10. Yesterday the temperature was 65º and today, it dropped by 80. What is the temperature today? A. 8° B. 57° C. 65° D. 73° mancirls are D. 7 pesos​