Answer:9+10 is 19
1+1 is 2
2+2=4
9 * 9 is 81
12 * 12= 144
last one not sure
Step-by-step explanation:
Answer:
9 + 10 = 19
1 + 1 = 2
9 x 9 = 81
12 x 12 = 144
8,999,000 x 4,499,000 = 40,486,501,000,000
You can check by using a calculator.
Hope this helped :)
18 ft
10
5/6 ÷ 1/12 ➡ 5/6 × 12/1 = 60/6 ➡ 10