an account question(federal income tax) form 8812 what would be the next multiple of 1000 for 346,400??? help please

7 hdd lines 1 and 2d Aa Number of qualifiog chindren under age 18 with the required codal security number b. Number of thilidren indudod on line 4 a who were under age 6 at the eed of 2021 4. Tublract line 46 from line 4a 3. It line 4a is more than ero, enter the amnust fram the tine 5 Worksheet; otherwile, enter 0 - 6. Number of other dependents, including any eualifieg chidren who are not under aoe 11 or who do not tave the required hoclal security number . Caution: be not include yourself, vour spouse, or anyone who is not a U,S. delicen, U.5. Faticnal, or U 5. resident alief. Also, do not indude amrone you intluded sa tere 4 a. 7 Mutiply line 6 tr 1500 8 Add lines 5 and 7 9 Initer the arneunt shewn belowi for yeur filing Hthly - Maried fititid jointir =$400,0000 - All cuther filing statuset - 1200,000 10. Subtract lient 9 from line 2 . - If zere er lesili, anter +Q- - if thate than zoro and not a muleiple of \$1.000, Anter the next miltiple at onter 12,000 , Me 11 Multipiy line 20br5se(0.05). dieak My wask