The third grade elementary school last semester mathematics calculation problem training one, oral calculation. (48× 0.33 = 16+20× 0.5 = 26 points) 50× 2 = 400× 6 = 22× 3 = 57 ÷ 9 = 460-80 = 23× 4 = 57× 0 = 4/kloc-0. 1008×5= 28÷4= 0+8= 3×0= 900÷3= 25×4= 56÷2= 24×5= 15×4= 50×4= 3 10×7= 980÷7= 40×2= 105×4= 30×2= 1 20×3= 9000÷3= 0÷2= 840÷4= 2000×4= 2 1×3= 50×4= 10000÷5= 80÷4= 60÷9= 1 000×7= 300×5= 240÷6= 500×9= 8000÷2= 860÷2= 60×7= 7×4+2= 2 1×3+4= 40÷2+ 1= 65438+ 0+72 ÷ 8 = 9× 4+4 = 2× 8 ÷ 4 = 1 2× 5 ÷ 2 = 36 ÷ 9+2 = 30 ÷ 5+2 = 8 1 ÷ 9+7.(24× 1 = 24+6× 1.5 = 33) 1800× 4 = 1040 ÷ 5 = 1206 ÷ 8 = / Kloc-0/356.086× 7 = 384× 8 = 352 ÷ 4 = 871÷ 3 = 9180 ÷ 3 = 520× 4 = 7224 ÷ 6 = 535 1 m-3 decimeter = 8100kg ÷ 9 = 910g-210g = 9t-4000kg = 5044g-3000g = 8000kg-5t =/klc. (65438+ 0.5 points for each question, * * 20 questions, 30 points) 43× 2+25× 5 602× 4-245× 3 64 ÷ 8+486 ÷ 6 942 ÷ 3-100 ÷. 7200 ÷ 9-2 100 ÷ 6 2 10× 4-549 ÷ 9 1544 ÷ 8+ 102× 5 3 192 ÷ 4+247; (0.25× 4 = 1+0.5× 4 = 3 points) Think about it! 1 .2 10 is obtained by multiplying four one-digit numbers. 2 10 = ××× 2. Fill in the numbers in the box to make the formula hold. (1) 42 ÷ 7 +□ = 40 (2) (70+26) ÷□ = 32 (3) □× 5+70 = 85 (4) □÷ (16-9) = 99. 696 + 928 × 2 4.3002 5.7 6.4800 × 2 × 402 × 2 7.428 8.93 × 6 × 4 9.48÷8×7 10.3600? 458+ 1204 1 1.493+25×7 12.305×(30 1? 297) Calculation problem 2 1. (4586+3654)÷4 2.2045÷5? 168 3.3834 ÷ 6× 44.3120 ÷ 5 ÷ 35.4020 ÷ 4 = checking calculation 6. 5853÷9= checking calculation: problem 4 1.280.