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Kneel for the calculation of recursive equation (excluding equation) in the fifth grade of primary school.
1. Recursive equation calculation is simple and convenient.

( 1) 4000÷25

(2) 7.4 1+4.6+2.59+5.4

(3) 18×(2 10-93)÷26

(4) 9. 14-4.57-0.57

(5) 65×35+65×65

(6) 3960÷[ 145-(27+88)]

(7) 64000÷250

(8) 7.84-2.93-0.93

(9) 6.5 1+7.8+3.49+2.2

( 10) 52×(207+93)÷ 13

( 1 1) 47×53+47×47

( 12) 14443÷[ 162-(97-78)]